The Taam ja’ is blue hole is still defined by what we don’t know. We can say it’s deeper than 1,390 feet, and the bottom hasn’t been found.

Beyond the beaches and resorts of the Bahamas, Andros Island is the country’s best-kept secret. A hidden world of blue and black holes pockmarks the coastline and interior. Andros has 200 blue holes, ...

A massive underwater sinkhole off the coast of Mexico has swallowed every instrument scientists have lowered into it, and they still have no idea how far down it goes. The Taam ja’ Blue Hole, sitting ...

Twenty years ago, a cave diver found thousands of fossils in a blue hole on Great Abaco Island. The fossils reveal the island's Ice Age history, with pristine specimens of now-extinct species.

Blue holes are among the least understood features of the ocean floor. From the surface, they can appear ordinary, even calm, blending into the surrou.

This story is part of our weekly Hidden Gems feature series as the USA TODAY Network-Florida takes readers around the state to highlight some of our most interesting attractions. FORT WHITE — Deep in ...

Scientists haven't been able to reach the bottom.