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 ...

Cave diving isn’t like normal scuba diving — there’s no straight path to the surface. Once inside, divers must follow a single rope through total darkness, narrow passages, and crushing pressure. One ...

Diver and photographer Jill Heinerth has explored unmapped, underwater caves deep in the earth, as well as the submerged crevices of an iceberg. She has seen hidden creatures and life forms that have ...

Why did this fool so many people?!

The final two have been successfully extracted from the Tham Luang cave complex in Thailand on Tuesday (July 10), where a total of 12 boys and their 25-year-old coach had been trapped since June 23.

The flow in some caves, like Twin Cave in Jackson County, Florida, is relatively low. In others, like the cave under Weeki Wachee Springs (of mermaid show fame), the flow is so strong that authorities ...