The 75 Best Swimming Holes in California

Lake Perris is one of the easiest lake swims in Riverside County, with two lifeguarded sand beaches, Moreno Beach and Perris Beach, staffed through the summer and on select spring and fall weekends. The water warms into the high 70s by midsummer, which makes for genuinely comfortable swimming rather than a bracing dip.

This is a swimming hole with full infrastructure: paved lots right at the beaches, restrooms and outdoor showers, and posted swim zones that keep boats at least 50 feet away. The reservoir drops to about 85 feet at its deepest, so families should stay inside the marked beach areas where the water is shallower.

As swimming holes go, Kings Beach is about as easy as they come. This California State Parks beach sits right in the town of Kings Beach on Lake Tahoe's north shore, with roughly 979 feet of sandy shoreline shaded by Jeffrey pines and clear, cool lake water directly off the sand.

This is a family swim spot rather than a secluded hole. There is a playground and a half-court basketball setup on site, kayaks and paddleboards share the water, and the whole thing sits along Highway 28 in a small lakefront town, which makes it one of the most accessible places to swim in the Tahoe basin.

Pope Beach runs for close to three-quarters of a mile along Lake Tahoe's south shore, about three miles west of South Lake Tahoe on Highway 89. It is more managed swim beach than backwoods swimming hole, with a broad sandy shoreline easing into the open, cold, clear water of the lake and views across to the Sierra Nevada peaks.

It sits right next to the Tallac Historic Site and the old Pope Estate, and one of the nicest ways to arrive is by bike on the paved Pope-Baldwin Bike Path, which skips the parking lot entirely. Kayak rentals are available on site if you want to get out past the swimmers.

Quarry Lakes is a 471-acre park in Fremont built on former gravel pits that were converted into a chain of lakes between 1997 and 2000. All the swimming happens at the lifeguarded Niles Beach Swim Complex on Horseshoe Lake; the park's other lakes, including Rainbow Lake and Lago Los Osos, are closed to water contact or fishing-only.

As an established East Bay place to swim, it is decidedly family-oriented: sandy shore, swim ropes marking the permitted area, and a free beach wheelchair available first-come, first-served. Blue-green algae advisories do get posted periodically, so check the park's water-quality page before you drive over.

Big Bear Lake has exactly one sanctioned swimming hole, and this is it. Swim Beach, inside Ski Beach Park on the lake's south shore, is a sandy, lifeguarded beach that the local visitor bureau calls the only area on the lake specifically designed for swimming. At around 6,750 feet in the San Bernardino Mountains, it is a mountain lake swim with a fully developed beach setup.

This is a supervised, family-oriented place to swim rather than a wild spot, with a fishing pier and playground in the surrounding park. Just plan around the schedule, since Swim Beach only operates Friday through Sunday, 11am to 4pm, during the summer season.

Lake Temescal has been cooling off Oakland since 1868, when Temescal Creek was dammed, and the recreation area around it was one of the first three East Bay Regional Parks. The lifeguarded swim beach on the northeastern shore is a genuine urban swimming hole, a man-made sandy beach with a shallow, gently sloping entry in a wooded canyon near the junction of Highways 24 and 13, and the park draws around 200,000 visitors a year.

The lake is shallow by reservoir standards, about 20 feet at its deepest, and it suits casual swimmers, families, and lap swimmers more than divers. One longtime local swimmer calls it not a dirty lake, though visitors recommend goggles for visibility, and clarity swings with conditions. The big caveat is water quality: toxic blue-green algae blooms have closed swimming in past summers, and the park posts a green, yellow, red advisory from weekly bacteria testing, so check before you go and skip swimming for three days after rain.

Elm Grove Beach is Lake Elsinore's city-run swim beach at 500 Lakeshore Drive, free to enter, with a free lot and mountain views across the water. As a place to swim it gets honest mixed marks, visitors consistently describe the water as murky, and the lake sees heavier use for boating and fishing than for swimming.

The city does treat it as a real swimming hole, with posted swim rules and an active Lake Watch program that monitors for harmful algae blooms. Go early on summer weekends, the lot fills fast and the heat builds quickly.

Lakeside Beach is a privately run sand beach on Lake Tahoe's south shore, operated by the Lakeside Park Association since 1938 and open to the public through day-of admission passes. Breakwaters were built specifically to calm the water for swimmers, and visitors in recent summers describe crystal clear water and notably clean sand. One recent visitor put it simply: the water was cold and absolutely amazing, which is Tahoe in a sentence.

This is a managed, family-oriented place to swim rather than a wild one, with a fenced seasonal kids' play area, an adjoining marina, and a beachfront restaurant. Note that the beach's current website states there is no lifeguard on duty, and public admission is capped at 200 visitors a day, purchased on site the day of. It sits within walking distance of the Stateline casino corridor, so it is easy to reach without driving.

Johnson's Beach has been the heart of summer in Guerneville since 1918, a privately run sand and pebble beach on the Russian River shaded by redwoods, black walnuts, and sycamores. It is one of the Russian River Valley's most popular places to swim, and the operation is built for a full day: swim, float, rent a canoe or inner tube, then hit the snack shack.

Families get a nice bonus here in the form of a separate shallow kiddie pond kept apart from the main river, which makes life easier with small children. No lifeguards are confirmed at the main beach, so keep watch there, but between the on-site rentals, the cabins and camping, and the easy in-town location, this swimming hole earns its hundred-plus years of loyalty.

Commons Beach is downtown Tahoe City's front yard, a four-plus-acre lakefront park where a grass lawn meets a trucked-in sand strip right on Lake Tahoe, steps from the shops and restaurants. The water is clear but cold even in summer, and the lakebed is rocky in places, so water shoes are a smart move. It works for everyone from families wading near shore to serious swimmers, the beach even hosts the open-water Tahoe City Swim race with courses up to 2.4 miles just offshore.

It may be the most convenient swimming hole on the north shore, with free lake-level parking, six heated public bathrooms, and a playground for the kids. Summer is peak season, with free Sunday concerts, Wednesday movie nights, and a Thursday farmers market layered on top of the swimming.

West End Beach is the rare swimming hole with actual lifeguards: the Truckee Donner Recreation and Park District staffs its roped-off swim area with American Red Cross certified guards through the summer, and markets it as the safest place to swim on Donner Lake. The 2-acre day-use beach on the lake's west shore comes with a sandy shoreline, picnic areas, a lakeside pavilion, and watercraft rentals.

This is cold Sierra mountain-lake water, though visitors say it runs a bit milder than neighboring Lake Tahoe, and Donner Lake is generally described as clear alpine water. With a shallow swim area and playground equipment, it is one of the most kid-ready beaches in the Truckee area.

Sierra Hot Springs is not a swimming hole in the wild sense, it is a nonprofit-run mineral springs resort on 600-plus forested acres near Sierraville, with a soaking history that goes back to the 1880s. Guests move between several distinct clothing-optional pools, from the enclosed Temple Dome Hot Pool at 110 to 112F with its geodesic roof and two cold plunges, to a large Warm Pool and an outdoor rock-tiled Meditation Pool both around 98 to 100F, plus private Phoenix Baths tubs drained and refilled with fresh spring water between guests.

The whole operation is reservation-only with no drop-ins, so book before you drive out. It runs year-round, and with Tahoe-area ski resorts under an hour away, a winter soak after a day on the snow is very much part of the draw.

Middle Falls is the showpiece of the McCloud River's three-falls loop, a roughly 50-foot waterfall pouring over basaltic lava into a deep plunge pool split in two by a rock outcrop. The local chamber of commerce calls the McCloud Falls area home to some of the region's most notorious swimming holes, and this pool at the base of the falls is the centerpiece.

Getting there is half the appeal. The trail from the Lower Falls picnic area runs about a mile along a forested Wild and Scenic stretch of river, with switchbacks and wooden stairs on the climb near Middle Falls. A railed overlook sits above the pool, so keep young kids close near the cliff edges.

Granite Bay Main Beach is one of the two primary places to swim on Folsom Lake's developed shoreline, along with Beals Point. It sits on the reservoir's western shore in the Sierra foothills east of Sacramento, and it's a built-out, official swim beach rather than a hidden swimming hole: paved parking right next to the water, restrooms, drinking water, and easy walk-in access for a family day of swimming and sunbathing.

This is big-reservoir swimming, so expect motorboats and jet skis on the lake and a boat launch nearby. Visitation peaks April through September when temperatures hit the 80s, 90s, and 100s, and spring evenings and weekends get notably busy. One important check before you go: State Parks has posted alerts about elevated E. coli levels at some areas of the lake, so look up current advisories first.

Hensley Lake is a 1,500-acre reservoir in the Sierra Nevada foothills near Raymond, roughly midway between Fresno and Yosemite, with about 20 miles of oak-studded shoreline. The swimming happens at a designated beach in the Buck Ridge Day Use Area, and since this is a foothill reservoir rather than a rushing creek, the water is still and lake-style, which suits families and casual swimmers just fine.

As swimming holes go this one is fully developed, run by the US Army Corps of Engineers, with a boat launch, fishing, and two campgrounds if you want to make a weekend of it. Summers here get hot, which is exactly when a designated swim beach earns its keep.

Baldwin Beach gives you about a half mile of sandy Lake Tahoe shoreline a few miles northwest of South Lake Tahoe, run as a Forest Service day-use area off Highway 89. There is a designated swim area, dogs are kept out of it, and the entry is a gentle sandy slope, so getting in is the easy part. The water is the hard part, Tahoe stays very cold, and official sources warn swimmers to watch for sudden storms and unexpected waves on a lake this big.

It is a straightforward, developed swimming hole: pay the $10 vehicle fee at the entrance booth, park in the paved lot that serves the beach directly, and you are on the sand. Kayak and paddleboard rentals operate nearby, and neighboring Kiva and Pope beaches extend the same sandy corridor toward Camp Richardson.

El Dorado Beach, also known as Lakeview Commons, is the biggest and busiest of South Lake Tahoe's city-run beaches, and it costs nothing to get on the sand. You swim in a roped-and-buoyed area right off the beach, where the near-shore water is shallow enough to warm up for wading and short swims in summer, with a lifeguard on duty during the season. Visitors consistently describe the water as crystal clear, and consistently cold, even in August.

Respect the ropes here. Just beyond the buoys the lake bottom drops away sharply, what one first-hand account called underwater cliffs, so this swimming hole suits families and casual waders more than open-water swimmers. The lakebed can be rocky near shore in places, so water shoes are a smart move, and the free lots across Highway 50 fill fast on peak summer days.

Healdsburg does something clever every summer: the city installs a temporary dam on the Russian River from July through Labor Day, backing up the water into a wide, calm swimming hole with a big sandy beach. Add lifeguards on duty through the season and free loaner life vests, and Veterans Memorial Beach becomes one of the most family-ready river swims in Sonoma County.

The setting is classic small-town river park, with shaded picnic areas and lawns set back from the sand and the historic steel-truss Memorial Bridge in view. It does get packed on summer weekends and holidays, to the point that the entrance closes once the parking lot fills, so an early start pays off.

Upper Lake Clementine Beach is a drive-up swimming hole on a reservoir of the North Fork American River, and the water is the headline: visitors consistently describe it as crystal clear, clear to the bottom. Near the parking area it stays shallow and warm, good for young kids, with deeper water farther out for real swimming and kayaking, and the current runs calm in summer.

Earning it takes a little grit. The access road is about 1.5 miles of steep, rough dirt switchbacks off Foresthill Road, better with high clearance, and the rocky shoreline has zero natural shade in a canyon that regularly tops 100F. Go in summer, go early, and skip spring runoff entirely, when the water runs fast and cold.

Vaquero Beach is widely considered the best swimming hole on Pyramid Lake, a 1,360 acre reservoir tucked into the steep chaparral hills just off Interstate 5 between Santa Clarita and Frazier Park. The beach itself is a wide stretch of sand, described by one source as pristine white sand, sitting directly below the Vista del Lago Visitor Center.

The water is the real draw here. Warm-season temperatures run roughly 77 to 93F from May through September, so this is genuinely comfortable swimming, and a visitor reported a lifeguard on duty. Expect crowds on summer weekends and holidays, because everyone within an hour knows about it.

Holtville Hot Springs is a natural, still-active geothermal spring on BLM desert land a few miles outside Holtville, inside the Hot Springs Long Term Visitor Area. The BLM officially lists swimming among the activities here, which makes this historic desert swimming hole a draw for both local day visitors and the winter RV crowd.

This is Imperial Valley desert, so winter is the season, matching the BLM fee period from mid September to mid April when the visitor area fills up. You reach it straight off Evan Hewes Highway, no trail involved.

Brandy Creek Beach is the most popular of Whiskeytown Lake's four official swim beaches, and it is easy to see why. A long sandy shoreline fronts a roped-off swim area that is closed to boat traffic, and summer surface temperatures reach nearly 80 degrees, unusually warm for a mountain reservoir. The lake is promoted for its crystal-clear water, though near-shore conditions at the beach can vary since the 2018 Carr Fire deposited sediment that made the water shallower close to shore.

That shallower entry actually works in favor of waders and families, which is who this swimming hole suits best. The National Park Service runs a free youth lifejacket loaner program from Memorial Day through Labor Day, along with a seasonal beach store and showers. One habit worth keeping: check current water-quality postings before you swim, since the beach has seen temporary E. coli advisories in past summers.

Bass Lake is one of the warmest lakes to swim in anywhere in the Sierra, a 4.5-mile reservoir at 3,400 feet in pine forest about 14 miles south of Yosemite. Summer water temperatures run 70 to 78 degrees, averaging around 76, which is bathtub territory by mountain lake standards, and local sources describe the water as warm and clean. The federally designated swim beach is at Recreation Point, buoyed off from the boat channel.

This is a busy multi-use lake rather than a quiet swimming hole, with pontoons, ski boats, and jet skis sharing the water, and resorts and marinas ringing the shore. The beach gives you a controlled shallow entry, but the lake drops to 40 to 60 feet through most of its area and reaches 98 feet at its deepest, so expect deep open water once you leave the sand. Best season is May through September, when the lake is full.

Hume Lake is an 87-acre reservoir sitting at about 5,250 feet in Sequoia National Forest, ringed by incense cedar and ponderosa pine and held back by a historic 1908 multiple-arch dam on Tenmile Creek. It is an officially designated swimming hole, and the big draw for swimmers is that only non-motorized boats are allowed, so you share the water with kayaks and canoes instead of motorboats.

Foot trails lead from the campground and day-use areas down to the lakeshore, so getting in the water takes just a few minutes. Swimming season is the warmer months. Come winter the whole area flips over to snowshoeing and cross-country skiing.

Sunset Beach River Park is one of the safer bets among Russian River swimming holes: a Sonoma County Regional Parks site where the current runs gentle, the county tests the water for bacteria every week from Memorial Day through Labor Day, and a recent summer test came back low risk. Swimming and sunbathing are the main summer draws, with views upstream to the Hacienda Bridge and redwood-covered hillsides.

It's also the standard takeout for tubing trips that start upstream at Steelhead Beach, so expect a steady parade of tubes and paddlers on hot days. The beach itself is gravel and rock rather than sand, and getting there means a quarter-mile carry from the lot, so pack light.

Senator Wash Reservoir is the swimming draw at the Imperial Dam Long Term Visitor Area, a BLM desert recreation area on the California side of the Colorado River just north of Yuma. Both the North Shore and South Shore sites have big gravel beaches with direct walk-in access, and the BLM lists swimming as a primary activity at each.

It works as a genuine desert swimming hole, and you can park your vehicle right on the beach. Winter is the big season here, when snowbirds fill the visitor area from September through April, though summer brings serious low-desert heat.

Monte Rio Beach, known locally as Big Rocky Beach, is the largest public beach on the lower Russian River and one of the most dependable swimming holes in Sonoma County's redwood country. The rocky-sandy beach sits by the Monte Rio Bridge with redwood-covered hills all around, and county health officials test the water for bacteria weekly through the summer, so this is a monitored, official swim spot rather than an informal one.

The operation runs seasonally from Memorial Day weekend through the last weekend of September, with boat rentals and a food concession on busy days. One rule regulars follow: swim at the main beach, not west of the bridge, where the managing district explicitly advises against getting in.

Steelhead Beach is Sonoma County's developed day-use park on the Russian River just north of Forestville, built around a sand-and-gravel beach that serves as the park's swimming hole. A short unpaved path drops from the parking lot through cottonwood and maple riparian woodland to the water, with redwood-covered hills and the Hacienda Bridge in view. The county treats swimming, tubing, and paddling as the core summer activities here, and even stocks free loaner life vests on the beach in season.

That said, this is a real river, and conditions shift with the flow. There is no lifeguard, and swimming can be discouraged at times because of strong current and submerged obstacles, so check conditions before letting kids loose. On busy summer days the entrance closes once the lot fills, and a weekend river shuttle runs as a cheap alternative to parking.

Cull Canyon Lagoon is what happens when you engineer a swimming hole on purpose: a 1.5-acre chlorinated swim lagoon with a white sandy beach, walled off from the larger Cull Creek reservoir by a secondary dam so its water level stays constant all season. Run by the East Bay Regional Park District in Castro Valley, it is lifeguard-supervised, fenced, and fee-based, with plenty of shallow water that the park district says is ideal for families with small children.

Because the lagoon is chlorinated and maintained like a pool, the water stays consistent regardless of weather or runoff, which you cannot say about most places to swim. The whole 360-acre canyon setting won a 1966 Governor's Design Award, and lawns and picnic areas surround the swim complex. Pre-register for weekends and holidays, the facility hits capacity early.

Sugar Pine Point Beach is the designated summer swimming beach inside Ed Z'berg Sugar Pine Point State Park, on nearly two miles of forested Lake Tahoe shoreline near Tahoma. You cannot drive to the water here, the beach is reached by an easy quarter-mile walk from the paved lot, which keeps it a notch quieter than the drive-up Tahoe beaches. The water is the classic Tahoe combination, naturally clear and cold even in summer.

The park around this swimming hole is half the draw: the restored 1903 Hellman-Ehrman Mansion sits near the day-use area, General Creek runs through wildflower meadows, and the grounds hosted Nordic events during the 1960 Winter Olympics. No lifeguards are mentioned in official park materials, and no source describes how quickly the bottom drops off, so keep young swimmers close.

Oak Shores is a Bureau of Reclamation day-use area on the western shore of Lake Berryessa, the big federal reservoir east of Napa Valley. Swimming is officially on the menu here alongside boating, water skiing, and kayaking, with beach and shoreline access and more than 200 picnic sites spread along the water.

For a swimming hole this close to wine country, the lake is described as large and comparatively uncrowded, though summer weekends fill fast. Official guidance says to arrive before noon on weekends and holidays from Memorial Day through Labor Day, because the day-use areas hit capacity quickly.

Dorabelle Campground sits in the firs, cedars, and pines above Shaver Lake, and its big perk for swimmers is a designated swim site on the reservoir, with a protected cove that camper reviews call wonderful for swimming and perfect for relaxing with kids.

The water is about a five minute walk from most campsites, which makes this less a day-trip swimming hole and more a camp-here-and-swim-daily setup. The open lake beyond the cove hosts motorboats, water skiers, and jet skis, so families tend to stay close to the sheltered water.

Paradise Beach is Sacramento's neighborhood swimming hole, a sandy stretch on an oxbow bend of the American River in River Park, about five minutes from Sac State. The curve of the cove creates comparatively calm, protected water, which is why regulars describe it as family-friendly, and oaks and cottonwoods along the bank throw some welcome shade.

Just remember this is a live river, not a pool. Even in the sheltered cove, visitors mention feeling the strength of the current while swimming, and there are no lifeguards on duty. Sacramento County Parks does run a free loaner life vest program for kids at popular parkway access points, which tells you how seriously locals take river safety here.

Austin Park is a 20-acre city park right on the shoreline of Clear Lake, California's largest natural freshwater lake, and it's a drive-up lake beach rather than a hidden swimming hole. You wade and swim straight off the sandy shoreline, with a paved lakeside path, memorial benches, and foothill views, plus a boat ramp and on-site kayak rentals.

The honest caveat is the lake itself. Clear Lake is shallow and naturally nutrient-rich, so the water tends toward green and murky, and blue-green algae blooms show up seasonally in spring and late summer. On days when the open water looks questionable, the park's splash pad and playground give the kids a water option without getting in the lake.

Forestville River Access, known to locals as Mom's Beach, is the quieter, less developed cousin of the bigger Russian River beaches like Johnson's Beach in Guerneville. It's a classic redwood-country swimming hole: a sandy-rocky beach shaded by redwoods, with shallow water near shore for the kids and deeper water further out for adults who actually want to swim.

It's free, which is part of why the small lot fills fast on summer days. There's no street parking allowed and the park closes to new arrivals once the lot is full, so regulars show up by mid-morning. No lifeguard here at any time, so keep eyes on the kids yourself.

Lake Forest Beach is the kind of spot locals keep to themselves, a small, free sand-and-pebble beach tucked into a residential neighborhood between Tahoe City and Dollar Point, at the end of Bristlecone Avenue. It faces across Lake Tahoe toward Mount Tallac, and it is quieter and more secluded than the busy Commons Beach in town, better suited to picnicking and casual wading and swimming than distance swims.

This is a neighborhood swimming hole by Tahoe standards, so expectations should match. Tahoe water stays very cold year-round, the swimmable beach shrinks when the lake runs high, and streetside parking is limited and fills on busy summer days. Go on a calm weekday and it is a gem.

Bonelli Park's swim beach is a lifeguarded sand beach on Puddingstone Reservoir, the 250-acre lake at the heart of Frank G. Bonelli Regional Park in San Dimas. This is a developed swim facility rather than a wild swimming hole, and that is the appeal: a designated beach, lifeguards in season, and views toward the San Gabriel Mountains, all inside a roughly 2,000-acre Los Angeles County park.

Swimming is only allowed at the beach during the summer season, and the setup is squarely aimed at families, right down to a Junior Lake Lifeguard program for kids and teens. Power boats and personal watercraft use the lake on an odd and even day rotation, but they launch from a separate ramp and stay apart from the swim beach itself.

Hoyt's Crossing is what people picture when they hear the words swimming hole: clear, cold Sierra snowmelt pooling over smooth granite in the South Yuba River canyon. The trail runs about 1.2 miles upstream from the old Highway 49 bridge, passing pool after pool along the way, from shallow calm wading spots near the bridge to deeper current-fed pools where visitors report cliff jumps up to about 5 meters. First-hand accounts describe the water as a deep jewel-toned teal with granite floors visible from the surface.

Take the danger seriously here. The state park calls this stretch more treacherous than other areas of the park, currents are deceptively strong during spring runoff, and the cold water carries real shock risk, which is why many visitors wait until mid-July or later. The lot fills fast on warm weekends, so arrive by 8 or 9 a.m.

Camp Edison's day use beach gets you onto Shaver Lake, a pine-ringed Sierra reservoir at roughly 5,370 feet, without needing a campsite. Pay the vehicle fee at the gate and you can spend the day swimming, fishing, and picnicking off the beach alongside the campers.

Camper reviews consistently describe the water as clear and beautiful, and the walk from parking down to the sand is short. Just remember this is a working reservoir: levels drop in dry years, submerged objects can sit closer to the surface than you would expect, and there is no lifeguard, so it is a supervise-your-own-crew kind of swimming hole.

Spring Cove is a Forest Service campground in a grove of oak, pine, and cedar right on the shore of Bass Lake, the warm 4.5-mile reservoir in Sierra National Forest near Oakhurst, about 21 miles from Yosemite's south entrance. As swimming holes go, this one is fully sanctioned: the lake has a designated swim beach, and swimming is officially listed among its primary uses alongside boating and fishing.

Bass Lake's warm water and hot sunny days are the draw, and camping here puts you steps from it, with the Rocky Point Picnic Site and Wishon Boating Site nearby. The lake is heavily used for water-skiing, jet skiing, and motorized boating, so swim areas share the water with boat traffic rather than sitting in isolated coves. Keep kids supervised near the swim areas, and store food properly, since black bears are active in the surrounding forest.

Bridal Veil Picnic Area is a Forest Service day-use site on the South Fork American River about 17 miles east of Placerville, and the official listings get straight to the point, describing two large swimming holes in the river that are popular with local residents. The pools are natural in-river spots reached from a day-use beach area, suited to casual river swimming and fishing rather than anything with serious current.

At around 3,200 feet in the mixed-conifer foothills of Eldorado National Forest, it makes an easy Highway 50 corridor stop from late May through September. There are no lifeguards and the river bottom is unconfirmed, so keep a close eye on kids, and note this is active bear habitat, so store food properly.

Slab City Hot Springs is a single warm pool at the edge of Slab City, the off-grid community near Niland, with water reported around 98 to 104 degrees. It is completely unmanaged and informal, a muddy bottom, a faint sulfur smell, and visible gas bubbles rising near the center of the pool.

Call it a desert swimming hole with heavy asterisks. Visitors say the water is genuinely warm and soakable, but clarity and sanitary condition are questionable, so this suits adults up for a rustic, low-expectation soak rather than families.

This is the classic Auburn swimming hole, a stretch of the North Fork American River near where the North and Middle Forks meet beneath the Highway 49 bridge, inside Auburn State Recreation Area. Swimmers head for the slower water below the bridge, which one visitor describes as clear enough to swim with goggles but deep enough in most spots that you can't touch bottom. Nearby stretches offer sandy beaches and natural pools better suited to wading, and the bridge itself shades the calmest water.

The setting is a steep canyon of oak and gray pine, with the historic No Hands Bridge about a quarter mile downstream. Timing matters here: spring and early summer flows run cold and fast, and conditions are considered safest by August. There's no lifeguard, and flows can rise quickly with upstream releases, so treat the river with respect.

Perris Beach is the designated swim area on the northwest shore of Lake Perris, an 8,800-acre reservoir ringed by rugged hills and open scrubland in Riverside County. The swimming happens inside buoyed zones that boats must stay at least 50 feet from, and the water gets genuinely warm, reaching roughly 70 degrees and famously feeling bathwater-warm in summer. This is a developed lake beach for families and casual swimmers, not a wilderness swimming hole.

It is a quick trip from car to water, under 5 minutes from the lot to the shoreline, with restrooms, outdoor showers, and picnic areas on hand. Keep in mind it is still open reservoir water with no confirmed lifeguard staffing, so watch kids even inside the buoyed swim zone.

Myrtle Beach is one of the best-known swimming holes on the Smith River, and once you see the water you understand why. The river forms a broad, calm pool here in a striking emerald-jade green that visitors consistently describe as cold, clear, and free of weeds and slippery rocks. One first-hand account simply called it pristine.

The layout works for almost everyone: a shallow sandy beach near the entry point suits kids and casual waders, while the riverbed drops off steeply farther out into deep water, and a big boulder on the far side serves as a popular 15 to 20 foot jumping spot for experienced swimmers. It gets crowded on summer weekends and afternoons, and the parking pullout is small, so going early helps.

Horse Creek is the Army Corps campground and day-use area on Lake Kaweah, in the Sierra foothills about 20 miles east of Visalia. Swimming is an official activity here, with lake access straight from the campground shoreline and a marina nearby, so it works well as a sanctioned swimming hole for a hot Central Valley day.

The catch is that Lake Kaweah is a flood-control reservoir, so the shoreline moves. In drought years the water can recede far enough that visitors report driving a few miles upstream to the flowing Kaweah River to cool off instead. In a normal summer, though, the water is just a few minutes' walk from your site.

Vaught's Beach, which locals also call Box Beach, is a sandy stretch of the North Fork Mokelumne River just below the Electra Powerhouse, a few miles off Highway 49 near Jackson. The draw is a large pool right off the beach, with deeper sections reported to reach 26 to 30 feet, plus a gentle sandy entry that makes wading easy on calm days.

The catch with this swimming hole is that the current is entirely at the mercy of powerhouse releases, which run up to about 800 cfs in normal operation and higher during spring spills. At high flows the current can push into the riverside trees, which makes swimming genuinely dangerous, so this spot rewards confident swimmers who check the flows before they go. It also doubles as the put-in for a well-known Class II-III whitewater run down to Middle Bar.

Lester Beach is one of the two swim beaches inside D.L. Bliss State Park on Lake Tahoe's west shore, and the park's own materials talk about the warm sand here alongside Calawee Cove. The water is the crystal clear, cold Tahoe you have heard about, clear enough that people snorkel and scuba dive off the park's shoreline. Lester is also the park's launch point for kayaks, canoes, and paddleboards, which tells you the access to the lake is calmer and more open than the rockier Rubicon Trail shoreline nearby.

The sandy, gently sloped beach suits wading and shallow play, but California State Parks does not post lifeguards at Tahoe beaches, and the lake stays cold even in midsummer. Day-use lots fill up fast in summer; when they do, staff send overflow to the visitor center lot about a mile away, so an early start protects your spot at this swimming hole.

Hidden Beach at Boca Reservoir is not an official facility at all. It is one of several unmarked pull-off coves on the eastern shore of this roughly 980-acre reservoir on the Little Truckee River, a few minutes northeast of Truckee off I-80, that locals have quietly turned into a favorite swimming hole. You park at the water's edge, walk down the bank, and swim straight off the shore.

The setting is high-desert sagebrush country ringed by low hills, and even though the reservoir is popular with boaters and campers, the string of small informal pull-offs gives this stretch a secluded feel. One first-hand account says the water is calmest in the morning or evening, and a local guide recommends midweek visits to dodge the summer weekend crowds.

Don Pedro's swimming lagoon at Fleming Meadows solves the usual reservoir problem: instead of sharing water with houseboats and jet skis, you get a purpose-built 2-acre lagoon with a sand bottom and beach, fenced off from the main lake and its boat traffic. Behind it there's a big grass lawn, a snack shack, and picnic grounds, which makes it a genuinely easy family day.

This is a contained lake to swim in rather than open water, geared toward casual day-use swimmers, with the full Fleming Meadows recreation area, campground, and marina around it in the oak-studded Sierra foothills. No lifeguard is named in official sources, so you're swimming at your own risk here.

Little Beach Park is the family swim spot inside the gated Hidden Valley Lake community near Middletown, and access is the first thing to know: it's members-only, checked by security at the gate, so you need to be a Hidden Valley Lake Association member or an accompanied guest to get in.

If you can get in, it's a gentle lake to swim in for families. The big flat sandy beach fronts a shallow, roped-off swimming section built specifically for younger kids, with a grassy picnic area, shade, and a playground right at the sand. There's no lifeguard at any time, so the HOA is clear that swimming is at your own risk.

Wild Plum Campground sits on Haypress Creek about a mile east of Sierra City, with several of its 47 sites right on the creek bank under pine and cedar. The swimming here is informal, campers walk the creek trail to pools along the water, including one spot about 10 minutes downstream of the last campsite where the creek widens into a pool roughly 4 feet deep.

Be honest with yourself about the temperature, though. The water is consistently described as very cold even in mid-July, and the creek runs high and fast with snowmelt in June and July before mellowing and warming a bit by September and October. It is a swimming hole for waders and quick cold dips more than long swims, and later in the season is the friendlier window.

China Cove Beach is the sanctioned place to swim inside Donner Memorial State Park, on the shore of Donner Lake near Truckee at roughly 6,000 feet in the Sierra Nevada. The park lists swimming among its main day-use activities here, and it singles this beach out by prohibiting dogs, which tells you it takes the swim area seriously.

Donner Lake itself is a calm, current-free mountain lake, which works in a swimmer's favor, but it is deep, up to 238 feet at its deepest point, and cold. There are no lifeguards at China Cove (only West End Beach across the lake has them), so keep kids close to shore. The park's 1846-47 Donner Party history and modern visitor center make an easy add-on to a swimming hole day.

Dunn Court Beach is one of three designated swimming beaches on Pine Mountain Lake, a private 202-acre man-made lake near Groveland, not far from Yosemite. The catch is right there in the word private: this lake to swim in is reserved for Pine Mountain Lake community property owners and their guests, not the general public.

If you have access, it's a pleasant setup: a sandy shoreline with swim docks, a grass picnic area with BBQ grills behind the beach, and lakefront homes around it. The lake is deep, averaging about 38 feet and hitting 100 feet at its deepest, and there's no lifeguard, so keep an eye on your swimmers.

Patterson Point Preserve is a two-acre, community-owned bend of the Russian River at Villa Grande, where locals have been swimming, fishing, and gathering for more than a century. The nonprofit Friends of Villa Grande has stewarded it since 2009, and the sand and gravel beach sits under a stand of roughly 33 old-growth redwoods estimated at 400 to 600 years old.

Swimming is an officially sanctioned use of this swimming hole during daylight hours, but it's completely unsupervised, so you're on your own out there. The riverbed drops off steeply close to shore, and the county posts harmful algae bloom test results on site during warm months, so check the postings before wading in.

Castaic Lagoon is the smaller pool just below Castaic Dam, kept at a maintained water level by dam releases specifically so people can play in it. That makes it a manufactured swimming hole rather than a wild one, but it comes with something most natural spots never offer: a designated swim beach staffed by lifeguards, historically running Memorial Day weekend through Labor Day weekend.

The county takes the swimming seriously enough to run a Junior Lake Lifeguard Program for ages 9 to 17 right off this beach. Just plan around the schedule, since swimming is only allowed during posted beach hours and the whole park has been closed Mondays and Tuesdays.

This BLM-managed stretch of the Wild and Scenic South Yuba River links the historic Edwards and Purdon Crossings, and both bridges double as day-use access points for the granite-bottomed swimming holes that make this canyon famous. Multiple sources credit the granite floors and walls for the pools' bright, clear look, and visitors say the pools suit everyone from toddlers in the shallows to adults floating the deeper sections.

Timing matters more than anything here. BLM's own guidance warns that spring snowmelt from roughly April through June can make some swimming areas unsafe, so mid-to-late summer is the window most people aim for. Stick to the calmer pools right at the crossings, the channel between them runs Class IV whitewater with undercuts.

William Kent Beach is a no-fuss Forest Service day-use beach on Lake Tahoe's west shore, about 2 miles south of Tahoe City off CA-89 and directly across the highway from the William Kent Campground. Official Forest Service materials list swimming, sunbathing, boating, and water skiing here, and the setting is classic west shore, pine, cedar, and fir running right down toward the water.

As a place to swim it is refreshingly simple: park at the campground, cross the highway, and you are on the beach in a minute or two. Tahoe water stays cold even in summer, so most people alternate swims with time on the sand.

Big Rock is the easy option in Willow Creek: a Forest Service day-use area sitting right on the Trinity River at the edge of town, about a quarter mile off Highway 96 near the 299 junction. The Forest Service officially lists it as a popular summer spot for swimming, sunbathing, and picnicking, with shaded picnic areas looking out over the river.

This is an unfussy river swimming hole rather than a developed beach, and it doubles as a launch point for anglers and non-motorized boaters, so you will share it with rafters and kayakers heading down the Trinity. If you are passing through on a hot day, it is about as convenient as river access gets.

Cable Car Beach is an informal swimming hole on the San Lorenzo River inside Henry Cowell Redwoods State Park, reached by an easy mile-long walk through redwood, bay laurel, and sycamore forest. The river here runs shallow and slow, mostly wading depth, with small sandy beaches on both banks and a little mid-river island that appears when flows drop. Trip reports describe the water as clean, with fish and crawfish visible below the surface.

The deepest spot, chest to neck deep on an adult, sits at the bend where the river turns, and smaller kids need a hand there. Otherwise this is a genuinely gentle, family-friendly place to swim, which is exactly why it gets crowded on summer weekends. Go early or pick a weekday, watch for poison oak along the trail, and know there are no lifeguards.

Vikingsholm Beach might be the most distinctive place to swim on Lake Tahoe: a small beach at the head of glacially carved Emerald Bay, sitting below a 1929 Scandinavian-style mansion, with Fannette Island and its stone teahouse just offshore. The granite-walled bay shields the water from the open lake's chop, and the water is classic Emerald Bay, widely described as crystal clear, and very cold year-round.

You earn this one. The only ways in are by boat or a steep, roughly 1-mile trail from the Highway 89 lot, and the climb back out is the hard part, hard enough that the park warns off visitors with health or mobility issues. That effort makes it feel like a hike-in swimming hole rather than a typical Tahoe beach, and a buoyed exclusion zone south of the pier keeps swimmers separated from boat traffic. It suits capable swimmers comfortable in cold water more than casual waders.

Goose Lake Campground #1 is a small, primitive Forest Service campground in the Gold Lakes Basin south of Graeagle, and its whole appeal is that the lake borders the campsites on multiple sides. This is a walk-from-your-tent swimming hole at about 6,700 feet, and visitors report swimming, floating, and kayaking right off the shoreline. It is an informal lake dip rather than a destination beach, which suits the quiet, high-country setting.

Two things to know before you commit. Multiple reviewers specifically warn about leeches in the water, so check skin after a swim, and the access road is rough, rocky, and unpaved, better for high-clearance vehicles than low cars, big RVs, or trailers.

Oak Bottom is a small 25-site Forest Service campground on the California Salmon River, tucked into Douglas fir and hardwood forest in one of the most remote corners of the state, near where the Salmon meets the Klamath. Both the Forest Service and Recreation.gov call out swimming as a popular summer activity here, with several river access points reachable by a short walk or drive from camp.

The swimming is informal: natural access points rather than a developed beach, no lifeguards, no depth markers. Timing matters too, because spring runoff turns this river into Class 3 to 5 whitewater, so the swimming season is really mid to late summer when flows drop and the pools calm down. For campers who want a quiet swimming hole a few minutes from the tent, it delivers.

Jones Bar is one of the South Yuba River's more earned swimming holes, sitting in the canyon where Rush Creek meets the Yuba, on the site of a Gold Rush era mining town inside South Yuba River State Park. You get there by walking about 1.5 easy, shady miles along the historic Independence Trail, then dropping down a steep, unimproved 0.4-mile spur to river level. One visitor account calls the hike in rather challenging, and this has been an established informal swim spot for a long time, with one longtime SYRCL member recalling bringing teenagers here to swim as far back as 1970.

The water in this stretch of the South Yuba is described by visitors as clear enough that snorkeling is viable, with fish visible below the surface. Timing matters, though. The river runs high and fast in early summer, and the state park warns its moving water can turn dangerous very quickly, so the sourced advice is to wait until flows drop, roughly July onward, with one source saying to hold off until August.

Niles Beach is the lifeguarded swim beach on Horseshoe Lake inside Quarry Lakes Regional Recreation Area in Fremont. The lake started life as a gravel quarry pit along Alameda Creek and now does double duty as groundwater recharge and one of the East Bay's easiest places to swim. Swimming is restricted to the roped-off swim areas, watched by EBRPD lifeguards during the season.

This is a developed, family-oriented lake beach with a sandy shore and bathhouse rather than a wild swimming hole, and that is exactly the appeal. One practical note: the park is fully cashless, so bring a card for both parking and beach admission.

Upper Letts Lake is a 35-acre lake tucked into a forested basin of the Mendocino National Forest at about 4,500 feet, roughly 19 miles west of Stonyford. The Forest Service officially designates it for swimming, trout fishing, and non-motorized boating, so this mountain swimming hole is a sanctioned lake to swim in, not a gray-area spot.

With no motors allowed and no current, the water stays calm, and campers consistently describe it as good for swimming and great for kids of all ages, with some families bringing toddlers. A flat one-mile trail loops the shoreline, and the campground sits right on the southern shore. Regulars suggest spring or fall over the heat of midsummer.

North Fork Falls is a two-tier waterfall on the North Fork of the North Fork American River, a short scramble from North Fork Campground near Emigrant Gap. The cascade feeds two pools, a smaller one under the first drop and a larger, deeper one at the base of the second, and the lower pool is deep enough that people jump from ledges roughly 10 to 25 feet up. The water is crystal clear over granite, and snowmelt-cold even in midsummer.

This is an unofficial swimming hole, not a designated recreation site, and it fits confident swimmers better than families with small kids. The rocks are jagged, the final descent is steep and loose, and there is no lifeguard or anything else at the falls. Go early morning or late afternoon in summer if you want it quiet.

Middle Meadows Group Campground is a Forest Service group camp deep in Eldorado National Forest near Georgetown, with a designated swimming hole on the South Fork of Long Canyon Creek about a quarter mile from the campsites. The managing agency describes the area as having a quiet, primitive, undiscovered feel, and the long forest-road drive in is exactly why it stays that way.

This is a bring-everything kind of spot. There is no potable water on site due to a contamination issue, so haul in your own drinking water, and this is bear country, so food goes in bear-proof containers. If your group wants a wooded creek swim without crowds, that quarter-mile walk to the water is a small price.

Green Valley Lake Beach is a high-altitude swimming hole in the truest small-town sense: a sandy beach on a 9-acre spring-fed lake at 7,000 feet in the San Bernardino Mountains, run as a paid concession and open to the public in summer with lifeguards. Swimming happens inside a float-enclosed area with floating docks, and there is a lifeguard-supervised deep-water float where diving is allowed.

The setup clearly favors families, with a shallow end, a children's playground right on the sand, and the community's own description of crystal-clear water. Fair warning on temperature, though. At this elevation the lake can freeze in winter, so the water stays cold even in July.

Hell Hole Reservoir is about as remote as a drive-to lake gets in this part of the Sierra, a big artificial lake on the Rubicon River at 4,630 feet, roughly 10 miles west of Lake Tahoe, hemmed in by granite walls and pine forest next to the Granite Chief Wilderness. The Forest Service lists swimming among the reservoir's activities, and with Hell Hole Campground sitting at the water's edge near the dam, this is a true backcountry lake to swim in.

Set your expectations accordingly. The water is snowmelt-fed and cold, there is no designated swim beach or lifeguard, and the access roads are long, winding mountain routes. A paddling account describes the upper reservoir's Narrows as granite cliffs cradling glassy water dotted with small pine-covered islands, which tells you the kind of scenery you are trading the convenience for. Supervise kids closely at this deep, cold swimming spot.

Don't let the name fool you, Stoney Creek Swim Area is a lake swim, not a creek dip. This Forest Service beach sits where Stoney Creek meets the Stuart Fork Arm of Trinity Lake, about 14 miles north of Weaverville in Shasta-Trinity National Forest, with brick-patio picnic sites, benches, and a paved path leading down to the sand and gravel shore. As an officially designated swimming hole on a big Trinity Alps reservoir, it is built for families and picnickers rather than wilderness seekers.

One quirk worth planning around: the beach lives and dies by the reservoir's water level. The official season runs May 20 through September 12, but the Forest Service warns the swim area can go dry and unusable when Trinity Lake drops later in the season, so it is best earlier in summer.

Del Valle West Swim Beach is one of two developed swim beaches on Lake Del Valle, the reservoir at the heart of Del Valle Regional Park about 10 miles south of Livermore. Lifeguards staff the beach 11am to 6pm on a seasonal schedule, and outside those hours unguarded swimming is allowed year-round in a zone north of the boat ramp. This is a fee-based swim area with posted rules rather than a hidden swimming hole, and that comes with a real upside: the park tests for blue-green algae weekly from April through October.

Check current advisories before you go, since algae blooms can trigger caution or danger postings, sometimes starting as early as March. Clarity near shore is variable too; a fishing report describes the deep middle of the lake running clear while wind-stirred shoreline coves drop to 1 to 6 feet of visibility.

The Smith River is California's only major undammed free-flowing river, and it shows in the water: cold, crystal-clear, and tinted an unreal emerald green. The national recreation area around Gasquet strings dozens of access points along Highway 199 and the forks, so you are really choosing from a menu of swimming holes, from broad calm pools built for floating to deep spots with cliff and rock jumping.

The named favorites include Myrtle Beach, The Forks, Craig's Beach, Sandy Beach, and the pool near Jedediah Smith Redwoods' jumping rock, while Middle Fork Gorge stays shallow and wade-friendly. Summer is the season, when flows drop and the water is most comfortable. Do respect the river, though: Craig's Beach has a strange current around its edges and dangerous rapids just downstream, and nobody has marked the depths at the jumping spots for you.

Cable Rock Day Use Site, known locally as Cable Beach, is a small rock beach on the Merced River about a mile and a half downstream of the Briceburg Visitor Center, reached by an unpaved BLM road that crosses a suspension bridge into the canyon. It is a legitimate swimming hole on one of California's classic whitewater rivers, with steep, rocky canyon walls all around and rafts running past in season.

Respect this one. The water runs swift and cold, into the low 50s, and the beach sits directly above a stretch of rapids. During high spring snowmelt the current can sweep swimmers off their feet, the BLM has temporarily closed the site during big runoff, and a fatal drowning search happened here in June 2017. Save it for lower late-season flows, wear a life jacket, and keep an eye out for rattlesnakes in the corridor.

Gold Lake is the big one in the Lakes Basin, a cool, clear glacial lake at about 6,445 feet in Plumas National Forest, ringed by fir and aspen with Mt. Elwell above. Swimming is an officially listed activity here, both at Gold Lake Campground on the east shore and at Lakes Basin Campground nearby, where old stone steps from a 1912 lodge still lead into a pool on Gray Eagle Creek. As alpine places to swim go, this one comes with drive-up access, campgrounds, and a boat launch right on the shore.

It is genuine high country, so plan accordingly. The water is cold, afternoon winds get strong and gusty enough to trouble small watercraft, and bears frequent the campgrounds. More than 30 miles of trails, including a stretch of the Pacific Crest Trail, thread between Gold Lake and its 20-plus neighboring lakes if you want to explore between swims.