In the winter of 2018, a crew from Aquatica Submarines started their descent to the bottom of the Blue Hole. Their mission was to create a 3D map of the sinkhole's interior, but along the way ...

If you're scared of deep holes and the ocean, this is not the sinkhole for you. Taam Ja' Blue Hole can be found in Mexico's Chetumal Bay. It's an underwater sinkhole, known as a "blue hole ...

Plunge into this deep blue hole and you'll discover imposing ancient stalactites (calcium deposits resembling icicles) and coral fringe. Declared a UNESCO World Heritage Site in 1996 – along ...

The Blue Hole covers an area of 164,000 square kilometers along the Argentine Continental Shelf, outside the Exclusive Economic Zone, with the following boundaries, to the north parallel 42°32 ...