For centuries, cenotes have held a mystique that captivates adventurers, historians, and spiritual seekers alike.

The Blue Hole of Santa Rosa, a natural swimming hole in New Mexico, has long drawn divers to its waters for just this reason.

A group of divers have connected two underwater caverns in eastern Mexico to reveal what is believed to be the biggest flooded cave on the planet, a discovery that could help shed new light on the ...

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 ...

(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 ...