It's called the Great Blue Hole. Scuba divers and snorkelers have ... And so we know that this was a big, dry cave, and it was during a really prolific era on Earth, so there were probably lots ...
Belize’s Great Blue Hole, pictured here, is probably the most recognizable blue hole. The newly discovered blue hole off the ...
This finding suggests that the Great Blue Hole was once a dry cave that formed around 14,000 years ago. It was later flooded and collapsed after the Ice Age ended when sea levels on Earth rose ...