There are trails near Tuttle and Jamestown campgrounds, and the abandoned railroad grade on the Spillway is a flat, wide trail.
The south shore of the park, including Jamestown Campground, boat launch, beach, cabins, picnic areas, group tenting and the park office, can be reached from US 322.
http://www.tripleblaze.com/trail.php?c=3&i=5370