Advertised as America's Only All Water Cavern and Wildlife Park, the Central Pennsylvania attraction has a show cave, wildlife tours through 1,500-plus acres of trails, the 4,800-square foot Miner's Maze, mountain tours and gem panning. Penn's Cave and Wildlife Park opened as a show cave in 1885 and has been frequented by Native Americans and fur trappers long before that. It is located on the U.S. National Register of Historic Places.