The American Cave Museum and Hidden River Cave is located just off I-65 Exit 58 in Horse Cave. Discover the secret world beneath you as you explore Kentucky's official cave museum. Take a one-hour guided tour and descend 150 feet underneath the streets of historic downtown Horse Cave to the underground river that flows through Hidden River Cave. For those who want a wet and muddy experience, take a extended one-mile trek off the beaten trail on a Caving Adventure tour. NEW- Try the zip line across the mouth of Hidden River Cave or a rappel down the limestone face of the cave. Stop by 119 East Main Street in downtown Horse Cave to have several great adventures in one location. To reserve your spot for the off-trail tour, call (270) 786-1466 or visit www.cavern.org. Open Daily Year-Round: 9 a.m. -- 5 p.m. (Central Time). Memorial Day through Labor Day: 9 a.m. -- 7 p.m. (Central Time).