At the largest cavern in the northeast and New York State’s second-most visited natural attraction, explore amazing rock formations and take a boat ride on the underground river that carved them. Travel 156 feet below the earth’s surface to a labyrinth of twisty, turny rock corridors. Colorful lights illuminate the caves, reflecting off the pool of water at the bottom, the “River Styx.” The temperature is a moderate 52 degrees year-round. Above ground is an adventure park featuring a Zip Line, H2OGO, Ropes Course, Rock Wall, and Air Jumper for all ages and abilities.