While Arizona is famous for its stunning landscapes and dramatic rock formations, some of the best things to see here are underground. Arizona has numerous famous caves — some readily open to the ...

Few know about this gigantic Arizona cave, where a hidden beach waits to surprise adventurous visitors seeking something ...

Step off the desert trail and into Arizona’s longest cave, where crystal formations and subterranean wonders await.

As far as hidden gems go, Emerald Cave certainly qualifies. It’s a small grotto carved from the rocky walls of a canyon on the Colorado River in northwestern Arizona that can only be reached by a boat ...

Imagine this: a secret cave hiding in the mountains, two amateur spelunkers going where no human had ever been before, blindfolding officials on the way to tour the cave to prevent them from knowing ...

PEACH SPRINGS, AZ — Located more than 200 feet below the surface near Peach Springs, the Grand Canyon Caverns and Inn offers visitors a rare underground experience filled with natural wonders and ...