Earth’s most terrifying holes from 40,000ft Soviet ‘well to hell’ to Mexico’s mysterious 500ft-wide blue ‘sea sinkhole’
EARTH is littered with terrifyingly deep, wide, and mysterious holes – and some are especially creepy. The Sun has rounded up ...
The Mirror US on MSN8mon
Deepest blue hole in world could have labyrinth of tunnels - but scientists can't reach bottom
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 ...
Divers make frightening discovery after finally reaching bottom of 400ft Great Blue Hole
The Great Blue Hole is located 60 miles off the coast of Belize. The rim rises up out of the Caribbean Sea, so it's not hard ...
PBS6y
Creatures of the Underwater Caves
Beneath the land surface of the Bahamas, the underwater caves known as blue holes stretch for hundreds of miles in all directions. Today, these labyrinthine passages host a variety of tiny sea ...
Business Insider4y
What's at the bottom of the Great Blue Hole in Belize?
Narrator: There's a massive underwater sinkhole off the coast of Belize that extends 125 meters into the Earth's crust. It's called the Great Blue Hole. Scuba divers and snorkelers have been ...