The main attraction of this 550-acre park is the unique cave system, undiscovered until 1974; the land was donated to the state and approved as a state park in 1988. Facilities include five miles of hiking trails, a handicapped accessible loop trail, picnic areas, trailhead access to National Forest trails, 63 spaces in the campground with water and electric hook-up, on-site interpretive programs, and a Discovery Center with exhibits and a gift shop. Development at Kartchner Caverns State Park has utilized some of the most cutting-edge cave development technology. Day-use fee includes entrance to grounds, Discovery Center, picnic facilities, and hiking; cave tour admissions extra, reservations strongly recommended.