Director Ron Howard breaks down a cave diving scene from new film 'Thirteen Lives' starring Colin Farrell, Viggo Mortensen ...

Explore ancient Mayan ruins and dive through underwater cave systems; there’s more to discover in the Riviera Maya beyond its famous beaches ...

In 1973, eight young divers entered a narrow sinkhole on Australia’s Limestone Coast known as The Shaft. They planned a quick descent to 76 meters - deeper than any recreational diver should go - but ...

The heart races. Breaths come short and shallow. I can feel the hairs on the back of my neck standing up, and there's a ...

That’s the sensation waiting for you at Black Chasm Cavern in Volcano, California – a subterranean marvel that transforms an ordinary day trip into an expedition worthy of National Geographic. Tucked ...

Cosmic Cavern in Berryville, Arkansas, is best known for its two subterranean lakes. The deep blue lakes look like the waters ...

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But don’t overlook the shoulder seasons, in the spring (April and May) and Autumn (September to November). Temperatures hover ...

The idea of disappearing into some of the world’s deepest pockets submerged in pitch black water, with only the sound of heavy breaths for company, would bring on a shiver for many. But for Thai cave ...