The lake is used for boating, water skiing, swimming, fishing, and canoeing. The park offers 112 campsites, 26 with electricity. American black bears are occasionally seen in the campground. There are also trails for hiking and mountain biking.
The Deep Creek Lake Discovery Center is the park's environmental center, and contains interpretive exhibits about the area's natural, cultural and local history. Naturalists, rangers and volunteers give daily educational programs about nature and the environment. The 6,000-square-foot (560 m2) facility has exhibits on local plants and wildlife, the lake and its watershed, conservation issues, and local coal and logging industrial activities.