Graham Cave, a site of very early human occupation, is a National Historic Landmark and the principal feature of the 357-acre state park. Radiocarbon dating has shown the cave was inhabited as much as 10,000 years ago. Special features of the park are its glades, savannas and sandstone bluffs with overhangs and wet-season waterfalls. The park, which borders the Loutre River, offers picnic areas with playgrounds, a campground and scenic hiking trails. An admistrative building contains both the park office and a small museum with exhibits describing the area's prehistoric occupation. Additional exhibits are located in a kiosk on the trail leading to the cave, and at the cave.
