If one thing’s clear from Jill Heinerth’s breathtaking new memoir on her life as a professional cave diver, it’s that this unusual career path requires serious mettle. Self portrait under the tannic ...

Cave diving combines the thrill of scuba diving and with the excitement of exploring a cave; it’s a challenging activity even for experienced explorers. At these four sites — some of the most popular ...

It's often called the Mount Everest of cave diving and it attracts people to Hernando County from around the world. Travel inside Eagle's Nest and see for yourself why some people risk their life to ...

A team of divers has discovered what’s believed to be the longest underwater cave in the world, just three miles from the white sand beaches of the Mexican resort of Tulum. The findings confirm that ...

(This program is no longer available for streaming.) Follow a fearless team of scientists as they venture into blue holes—underwater caves that formed during the last ice age, when sea level was ...

Maybe when you picture a university professor doing research it involves test tubes and beakers, or perhaps poring over musty manuscripts in a dimly lit library, or maybe going out into the field to ...

HUDSON, Fla. (AP) — Divers call north and central Florida "cave country" — for the dozens of springs and sinkholes that lead to networks of caverns and twisting tunnels, some hundreds of feet deep and ...