In 2000, Russian-Israeli Yuri Lipski bravely ventured into the Blue Hole, huge marine cavern, off Egypt's coast but he soon ...

In 1993, researchers exploring a cave in southern Italy found a sinkhole leading to a tunnel. At the end of the tunnel was a ...

Yuri Lipski, a Russian-Israeli scuba diver, plunged into the Blue Hole in the Red Sea off Egypt's coastline and never ...

Mexico’s Tam Ja Blue Hole has been confirmed as the world’s deepest, reaching at least 1,380 feet. Scroll down to know what ...

Far below the turquoise surface of the Caribbean, an almost perfectly circular patch of dark water drops away so sharply that ...

A blue hole in the sea near Mexico is so deep that humans have yet to reach its bottom. It also has certain conditions that ...

Despite crushing pressure, total darkness and near-freezing temperatures, researchers found an underwater world teeming with ...

Researchers have discovered an underwater sinkhole so deep, they haven’t even reached the bottom yet. Taam Ja' Blue Hole ...

Not only did the turf give way, but a feeling of certainty did as well. Heidelberg’s AJ Burkitt Oval, a small but beloved ...

Almost one decade of recorded data retrieved from deep coral reef dives reveals some of the first evidence of that climate ...

In the South China Sea, near the Paracel Islands, the aqua-colored waters of an expansive shallow reef platform suddenly gives way to a near vertical shaft of vast darkness – an ocean sinkhole almost ...

Only a scattering of light penetrates the deep water, more than 300 feet beneath the ocean surface off the coast of Guam. It’s like twilight to the human eye, even in the middle of the day. This part ...