The Hranicka Abyss is at least 1,325 feet deep, and likely goes down further. — -- A team of explorers believe they have discovered the deepest known underwater cavern the world in eastern Czech ...

I'm a severe claustrophobe. After getting trapped in a slide in my local McDonald's at five years old, I swore off all tight and dark spaces forever. So it's not entirely surprising that I couldn't ...

Join us as we descend into the legendary 125-foot Warm Up Pit in Ellison’s Cave, one of Georgia’s most iconic vertical caving spots. Located in the heart of Pigeon Mountain, this technical drop offers ...

Hidden deep in the wilderness lies a cave unlike any other—featuring not one, but two stunning underground waterfalls. In this video, we venture through tight passages, echoing chambers, and rushing ...