1. Chickasaw National Recreation Area
Sulphur, Oklahomacreek
Chickasaw National Recreation Area in Sulphur, Oklahoma is one of those rare parks built almost entirely around swimming. The NPS officially designates a whole roster of places to swim here: spring-fed Travertine Creek from Little Niagara downstream, Rock Creek with named spots like Black Sulphur Springs and the 40 Foot Hole, the north shore of Veterans Lake, and lake swimming on the 2,350-acre Lake of the Arbuckles.
The Travertine district is the headliner, a heavily forested corridor where natural springs pour out roughly 5 million gallons of cool, clear water a day. Pick your swimming hole to match your crew, since the shallow spring-fed creek water suits small kids while the 40 Foot Hole implies real depth. There are no lifeguards anywhere, entry is free, and the Travertine Creek lot fills completely on busy summer weekends, so go early or hit a weekday.
- The water: Multiple designated areas: shallow spring-fed creeks in the Travertine district, plus lake swimming at Veterans Lake and Lake of the Arbuckles. Creek water runs clear; lake clarity varies.
- Getting in: No hikes required; swim areas sit near their own lots. On peak days when Travertine parking fills, walks from open parking can exceed 1.5 miles.
- Parking: Free, but the Travertine Creek lot fills completely on summer weekends and holidays. Rarely full on non-holiday weekdays.
- Facilities: Restrooms are at nearby campgrounds rather than right at the water: flush toilets and showers at Buckhorn, vault toilets at Rock Creek, flush toilets at several others.
- Fees: No park entrance fee. Boat launch permits are $4 per day or $30 per year; camping runs $20 to $50 per night.
- Good to know: No lifeguards, and some swim areas have sudden, unmarked depth changes. Travertine Creek's spring flow can occasionally dry up.