Yoshida Katsuji investigates unexplored caves around the world, and won the Uemura Naomi Adventure Award for his achievements in Laos. He talks about the appeal of cave exploration.

Deep inside a river cave, a massive waterfall drops nearly 280 feet into complete darkness. Reaching the bottom required a ...

For two of the world’s most intrepid cave divers, what they discover in unmapped underwater caves deep in the Mexican jungle can be truly life-changing. Klaus Thymann is 300m inside an underwater cave ...

Imagine entering a cave and not realizing that beneath your feet lies a bottomless pit that could plunge you to great depths. Such was the Veryovkina Cave, the deepest-known cave on Earth, in the ...