A 3D morphological map of the Taam Ja’ Blue Hole. Despite the inhospitable conditions, blue holes are veritable oceanic oases teeming with life that’s adapted to an oxygen-poor environment.

That’s 480 feet deeper than the previous record holder, the Sansha Yongle Blue Hole, aka the Dragon Hole, in the South China Sea, which measures 990 feet to the bottom.

It's a limestone cave, to be exact. The Great Blue Hole contains stalactites and stalagmites below the surface, some 40 feet in length. And as with any good cave, more mysteries lie within.

A team including Virgin billionaire Richard Branson has returned from the bottom of Belize’s Great Blue Hole with exciting findings. Learn what’s down below 400 feet of Caribbean Sea.

You may like Scientists drilled into Belize's Great Blue Hole and discovered a worrying trend; Only 0.001% of deep ocean has ever been explored by humans — an area equal to the size of Rhode Island ...

These “blue holes”, as scientists call them, do not swallow up everything incapable of fighting their gravitational force, like their black hole cousins. But to those who study them, they are ...

Gaskell’s hole isn’t the only recently discovered blue hole. Just last year, the world’s deepest blue hole, the 987-foot Dragon Hole , was spotted in Paracel Islands in the South China Sea.

The Great Blue Hole is more or less an underwater sinkhole that researchers have long wanted to know more about; that said, expedition teams geared up and moved forward with a full-scale expedition in ...

GOOGLE MAPS has enabled the incredible discovery of a giant sinkhole called a ’blue hole’, in the heart of Australia’s Great Barrier Reef. By Claudia Cuskelly 14:20, Thu, Sep 28, 2017 ...

"After spotting this deep blue hole on google maps we decided to head far offshore, out further than our normal Reef trips to see what dwelled within," he wrote.