Sheck Exley was one of the most experienced and popular divers of his time, but Zacatón was a step too far for him.

But relief and celebration were suddenly cut short by personal tragedy - on Wednesday it emerged ... prepared in the best possible way from a cave-diving perspective," she said.

Watch the full episode here: <a href=" February 14th, 2014, five Finnish cave divers set out for the ultimate challenge: to ...

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 ...

As a child, Jill Heinerth used to be afraid of being alone in the dark. "I used to have to swallow a lump in my throat to go down the basement stairs because the light switch was at the bottom of ...

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 ...

The cave extends a quarter of a mile beneath the Earth ... Upon his return the next year, he found that an underwater collapse had cleared his way, and he was able to dive to a depth of 869 feet to ...

Australian cult rocker Nick Cave, known for his dark and stormy ballads, released his latest album Friday, a record he describes as "the light flooding in" again after the death of two sons.

Cave divers are at the forefront of this research, helping us access some of the deepest and darkest subterranean and water-filled parts of our planet. Take a deep breath and dive below the surface ...

(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 ...

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Marina stood at the mouth of the Rising Star cave and looked inside. Outside, it was the rainy season in this grassland part of South Africa, home to jackals and porcupines and cobra snakes and ...