Grand Canyon Caverns & Inn

Grand Canyon Caverns & Inn sits along Historic Route 66 at Mile Marker 115 near Peach Springs, Arizona, offering visitors a rare combination of underground exploration, lodging, and dining in one remote desert destination. The attraction holds the distinction of being the largest dry caverns in the United States, with formations created over 65 million years ago within limestone that once formed the bottom of an ancient inland sea. Currently owned and operated by the Havasupai tribe, the site draws approximately 2,250 reviewers who collectively award it a 4.3-star rating, making it one of the most reviewed attractions in northern Arizona.

What distinguishes this attraction from typical desert roadside stops is the depth of the experience offered underground. Tours descend 200 feet via elevator into a vast network of dry caverns, where visitors encounter ancient waterways, a prehistoric sloth skeleton, and a 19th-century bobcat walk preserved in the limestone. The on-site Crystal Restaurant serves diverse menus for tour guests, inn patrons, and travelers passing through on Route 66, while accommodations include both inn rooms and an RV park with water and electric hookups. The property also functions as a check-in point for trips to Supai and the Havasupai waterfalls, making it a gateway location for one of Arizona's most secluded hiking destinations.

Reviewers consistently highlight the expertise and friendliness of the guiding staff, with multiple five-star reviews specifically praising guides who provide detailed historical context about the caverns' formation and the Havasupai people's connection to the land. One reviewer described the tour and lunch combo as a bucket-list experience, while another recommended allocating at least an hour and a half for the underground exploration. Several reviewers noted the physical demands of the cave path, warning that steep inclines and stairs make the standard tour challenging for older visitors or those with mobility limitations.