Pearl Lake Beach

South Beloit, Illinois · on Pearl Lake

Verified · 3 independent sources · top-verified

WATER: quarry lake (spring-fed)
ACCESS: See details below
FEE: $25 per person
SEASON: May

About Pearl Lake Beach

Pearl Lake Beach is a privately operated, paid swim resort and campground on Pearl Lake in South Beloit, Illinois (1220 Dearborn Ave, off Route 251), about 90 miles from Chicago near the Illinois-Wisconsin border. Pearl Lake is a former sand and rock quarry that is spring-fed, giving the swimming hole unusually clear, turquoise-blue water. As a lake to swim in it pairs a sandy beach and designated swim areas with kayaking, canoeing, paddleboarding, an inflatable water obstacle course, and certified scuba diving among submerged vehicles and aircraft in deeper sections (down to about 150 feet). The property also includes RV camping, seasonal waterfront sites, and cabin rentals. This is distinct from a nearby South Beloit municipal park on the same general lake, which the city refers to informally as 'Lake Victoria' and promotes only for picnicking, fishing, and boating.

A 50-acre spring-fed former quarry lake with notably clear, turquoise water and a sandy beach, set within a larger RV resort/campground property (339+ RV sites, seasonal waterfront lots, cabins) in South Beloit, Illinois, near the Illinois-Wisconsin state line and the Rock River corridor.

Swimming at Pearl Lake Beach

Swimming takes place in designated, clearly marked beach areas along a gently sloping sandy shoreline, separated by a wooden walkway/boundary from boating, paddleboard, and scuba-diving zones; the spring-fed quarry water is exceptionally clear (reported ~30 ft visibility, with dive areas reaching depths up to ~150 ft), often compared to Caribbean or Florida beach conditions.

How to get to this swimming hole

1220 Dearborn Ave, South Beloit, IL 61080, just off Route 251 near the Illinois-Wisconsin border; entrance is through the Pearl Lake Beach/Pearl Lake Resort campground property (distinct from the South Beloit municipal park at 400 Winnebago Ave on the same lake system).

The walk in

No real hike here. The water is a short walk from where you park. Drive-up access: parking lot is near the admissions/Guest Services building, with a short walk to the beach itself (no trail or hike involved). A 'Jurassic Trail' nature path exists on the broader campground property for recreation, but it is not the access route to the swim beach.

Plan your visit

Bringing kids

OK with supervision

Sandy beach with gradual entry and a designated/marked swim zone separated from boating and scuba areas by a wooden walkway, but there is NO lifeguard on duty ('Swim at your own risk' per site rules). Children under 8 must wear a swim trainer or life jacket at all times in the water, and children under 16 must be accompanied by an adult while swimming; non-swimmers of any age must wear a life jacket. The lake itself is a former quarry with sections up to ~150 ft deep for certified scuba divers, though these are gated off from the swim area.

Parking

Free

Dedicated parking lot near the admissions/Guest Services building (per roscoenews.com); no separate parking fee found beyond the $25/person day-use beach pass. Resort rules require all vehicles to park in designated areas ('within the campsite' for campers) and prohibit parking on the grass.

Restrooms

Yes

Facility listings compiled in prior research (familydestinationsguide.com, roscoenews.com) include restrooms/showers among on-site amenities; this session's direct review of pearllakebeach.com's amenities/rules/beach pages did not independently re-confirm a specific restroom location (e.g., inside the Beach Clubhouse vs. a separate bathhouse) -- not reconfirmed this session.

Water clarity

Clear

Consistently described across sources as crystal-clear, turquoise, spring-fed quarry water; a 2023 local news feature (roscoenews.com) reports underwater visibility of roughly 30 ft for scuba divers exploring the deeper sections.

Hours

Beach open daily 10am-5pm, roughly May 22/23 through Labor Day weekend/Sept 1-2 (weather permitting); Guest Services Office 8am-5pm; Beach Clubhouse and bar/concessions 10am-5pm; camping season runs longer, roughly April 11-October 11.

On the water

KayaksCanoesPaddleboards

Restrictions: Motorboats/personal watercraft are not mentioned as permitted anywhere in the site's rules, amenities, or news coverage reviewed -- only non-motorized kayak/canoe/paddleboard use and certified scuba diving are described. A wooden walkway physically separates the designated swim zone from the boating/paddling/diving areas.

Site rules state fishing (separate activity) is catch-and-release with barbless hooks only, dawn to dusk, on the south side of the lake.

Rentals nearby

Pearl Lake Beach (on-site rental stand)

1 kayak and 8 paddleboards available for hourly rental; guests may also bring their own kayak/canoe/paddleboard

Prices: $10/hour/person for kayak or paddleboard; separately, WIBIT inflatable water obstacle course is $10/person per 45-minute session, and certified scuba diving is $30/diver plus $20 for an accompanying non-diver

On the beach at Pearl Lake Beach/Resort, 1220 Dearborn Ave, South Beloit, IL · Beach operating hours, 10am-5pm daily during the May-September beach season

Backstory

Pearl Lake formed from a former sand/rock quarry that is spring-fed, producing unusually clear blue-green water; the resort now stocks the deeper sections with sunken vehicles and aircraft for certified scuba divers. The resort/campground was purchased by operator Lance Beatch in April 2023, who has continued developing beach, camping, and waterfront-lot amenities.

Pearl Lake Beach: FAQ

Does Pearl Lake Beach charge a fee?

Paid admission required: single-day beach pass reported at roughly $25 per person (children under 2 free) as of 2023-2024 reporting; site also sells RV/cabin/waterfront-site stays. Current pricing is managed via 'Buy Beach Pass' on pearllakebeach.com; a 2026 beach waiver is required.

Is Pearl Lake Beach kid friendly?

Do I need to hike to reach Pearl Lake Beach?

No significant hike is required. The swimming area is close to parking and access.

Where do I park for Pearl Lake Beach?

Can I bring a kayak or paddleboard to Pearl Lake Beach?

Site rules state fishing (separate activity) is catch-and-release with barbless hooks only, dawn to dusk, on the south side of the lake.

When is the best time to visit Pearl Lake Beach?

Beach/swimming season runs roughly Memorial Day weekend (~May 22) through early September (~Sept 1); camping season runs longer, roughly April 11-October 11.

What are the rules at Pearl Lake Beach?

Swimming restricted to designated/marked beach areas, separated from boating and scuba zones; a signed beach waiver is required each season; the operator publishes a 'Rules and Regulations' page (specific lifeguard/alcohol/pet policies not confirmed in sources reviewed).

What water body is Pearl Lake Beach on?

Pearl Lake Beach is on Pearl Lake, a natural quarry lake (spring-fed) verified in USGS hydrography data.

Conditions right now

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Live data from the National Weather Service and USGS. Conditions at the water can differ, use your judgment.

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At a glance

Land access: Unknown, verify locally
Facilities: sandy beach; designated swim area; inflatable water obstacle course; RV sites with full hookups (339+); seasonal waterfront sites; rental cabins; guest services building; restrooms/showers; food trucks/seasonal food service; playground; basketball/pickleball courts; game room ('Fan House'); picnic areas
Highlights: Exceptionally clear, turquoise spring-fed quarry water often compared to Caribbean/Florida beaches; Sunken vehicles and aircraft for certified scuba divers in deeper sections; Sandy beach with a wooden walkway separating swim zone from boating/diving areas; Large inflatable floating water-obstacle playground
Nearby towns: South Bluff Homes (1.0mi); South Beloit (1.1mi); Northgate Estates (1.3mi); Beloit (2.8mi)
Coordinates: 42.4785, -89.0268