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 ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

Add Yahoo as a preferred source to see more of our stories on Google. Something Truly Scary Discovered at The Bottom of Belize's Great Blue Hole An expedition to the bottom of the Great Blue Hole off ...

Blue holes, the name for collapsed limestone caves filled with sea water, also serve as important repositories for storm data due to sediments captured with in their low-oxygen bottom layers. A new ...

For thousands of years these underwater sinkholes remained hidden beneath the ocean. Known today as blue holes, they reveal ...

Far from the open ocean trenches, divers in a shallow Mexican bay have found a vertical portal into the unknown. The Taam Ja’ Blue Hole plunges so far beneath Chetumal Bay that scientists have not yet ...

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, ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Sinkholes are natural depressions that form when rock ...