Carlsbad Caverns really is a hole in the ground. It's in New Mexico. Will Rogers said it's the Grand Canyon with a roof. July 12, 2016 was the date that the Foggs dropped in for a look around. We walked down, then rode the elevator back up and out. Doug's photos of the trip are in the 4K video below.

Carlsbad Caverns 4K from Doug Fogg on Vimeo.