Celebrating Discovery and Family-Friendly Fun Since 1930! Where science and adventure are NATURALLY FUN! One-hour interpretive tours of two spectacular crystal caverns. Daily spring, summer, and fall. Winter by appointment. The northeast’s premiere caves & karst educational facility with programs for schools and youth groups our specialty. Badge programs for Girl and Boy Scouts, Ultimate Underground Birthdays, Kids Cave Kamp, Raystown Rocks Gift Shop, gem panning, primitive camping, picnic facilities, and five great family events… October Ghosts & Goblins Tours, December Santa in the Cave, February Batfest, April Easter Bunny Underground, June Discovery Days, plus summer Blacklight Adventures, Photo Tours, Family Fun Nights and T-Rex Tuesdays! Closest Cavern to Raystown Lake. Just 3 miles west of Huntingdon, PA.