Tenkiller State Park sits along the shores of Lake Tenkiller in Sequoyah County, Oklahoma, where the Illinois River feeds into one of the clearest lakes in the state. Established in 1953, this 1,190-acre park draws visitors who want stunning blue-green water without leaving the Ozark foothills.

Lake Tenkiller earns its reputation as “Oklahoma’s Clear Water Wonder” — visibility can reach 20 feet in calm conditions, making it one of the best spots in the region for scuba diving and snorkeling. The lake’s deep, spring-fed waters stay cool well into summer, a relief when Oklahoma heat bears down.

Beyond the water, the park offers hiking trails that wind through dense oak and hickory forests along rocky bluffs overlooking the lake. Fishing is a major draw, with spotted bass, largemouth bass, and catfish all thriving in Tenkiller’s depths. Boating, water skiing, and swimming round out the water activities, while the surrounding hills provide excellent bird watching and wildlife viewing.

The park sits in the western edge of the Ozark Plateau, giving it a more rugged, wooded character than much of Oklahoma. Fall brings exceptional color to these hills, making late September through October an ideal time to visit. Spring is best for wildflowers and comfortable hiking temperatures, while summer belongs to the lake crowd.

Visitors should know that Tenkiller’s popularity means weekends fill up fast from Memorial Day through Labor Day — midweek visits offer a quieter experience on the water and trails alike.

Explore Nearby

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