Take a 210-foot-deep tour below ground exploration tour and experience the labyrinth of limestone passageways filled with beautiful rock formation of stalagmites and stalactites at the Grand Canyon Caverns, the largest dry cavern in America. Tour options include a standard 45-minute tour, a shorter 25-minute ADA accessible tour, and a 2-hour explorer tour that tales guests off the beaten path. Additionally, guests can combine their short or standard tour with a meal in the underground Crystal Room restaurant for lunch or dinner.