They have participated in a number of cave diving rescue operations, including in Norway, France and Mexico. Dr Harris, from Adelaide in Australia, has decades of diving experience. He was the one ...

Beneath an unassuming town in Missouri is the world's largest subterranean lake. 457,000 square feet of diving await along ...

The logic for this would be the fear their rescuers had that they would panic when wearing diving equipment for the first time in darkness and swirling cave water, endangering the lives of all of ...

Just looking for the best Mexico cave diving experience? I recommend the Two-Tank Certified Cenote Diving Tour. You’ll visit different cenotes based on your preferences and skill level.

This story appears in the August 2010 issue of National Geographic magazine. We sink into Stargate, sweeping the void with our dive lights. Fifty feet from the surface looms a pale haze, less ...

Before the rescue, many viewed cave diving as odd, and even abnormal. In the documentary The Rescue, cave diver Josh Bratchley acknowledged that being in a pitch-black cave underwater is "probably ...

(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 ...

And Heinerth says diving inside that iceberg in Antarctica was her most dangerous dive to date. "I was the first to cave dive inside an iceberg, so we had no idea what we might encounter.

Take a deep breath and dive below the surface with cave-diving experts and scientists in the video above. Find out what it takes to plunge into the dark and mysterious world of underwater caves. Caves ...