Cumberland Caverns is Tennessee's largest show cave and a U.S. National Natural Landmark. Your whole family can see spectacular formations and enjoy the guided tour through some of the largest underground rooms in the eastern United States. We also host a variety of Adventure Tours and Caveman Campouts. We are open from 9-5 CST with Daily Walking Tours leaving out every hour on the hour. Closed Thanksgiving Day, Christmas Eve, Christmas Day, March 24-25-26, 2017, and open at 1:00 pm CST on Easter Day. Cumberland Caverns-where adventures run deep!