Extreme explorers attempt the deepest underwater body recovery in history. March 19, 2007 — -- Bushman's Hole, on the edge of the Kalahari Desert in South Africa, is one of the strangest places ...

The Hranicka Abyss is at least 1,325 feet deep, and likely goes down further. — -- A team of explorers believe they have discovered the deepest known underwater cavern the world in eastern Czech ...

In 1974, two elite British cave divers pushed into an unexplored flooded passage deep beneath South Wales. The dive had already stretched air limits and physical endurance. When the tunnel descended ...

Mexico's Taam Ja' Blue Hole is the deepest known underwater sinkhole in the world, researchers have discovered — and they haven't even reached the bottom yet. New measurements indicate the Taam Ja' ...

With help from an experienced underwater cave-diving team, researchers have constructed the most complete map to date of the microbial communities living in the submerged labyrinths beneath Mexico's ...

While for most people the idea of crawling deep into a dark hole in the earth sounds positively terrifying, some people adore ...

The silence at depth isn’t empty—it’s full. Full of pressure, motion, and awareness. Your presence feels small but accepted.

The eastern Yucatán Peninsula study region is pierced by vast interconnected flooded tunnels, that function as underground rivers. The groundwater is the only source of potable water for the whole ...