The newly discovered blue hole off the coast of Mexico is even deeper. Researchers have found a blue hole they say is the ...
EARTH is littered with terrifyingly deep, wide, and mysterious ... Hole can be found in Mexico's Chetumal Bay. It's an underwater sinkhole, known as a "blue hole" – and is believed to be the ...
A deep blue hole in the ocean in Mexico is the deepest known sinkhole in the world - and scientists haven't even been able to ...