it's a cave that collapsed !
A Blue hole can be found in Belize, the Bahamas, Guam, Australia.
Not sure
The great blue hole of Belize!
never
The "Great Blue Hole" is 124 metres in depth .
Blue hole is situated 13 km from Belmopan on the way to Dangriga in the southern high way.
The Great Blue Hole is a large submarine sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef, a small atoll 70 km from the mainland and Belize City.
If you are referring to the Great Blue Hole it is a huge underwater sinkhole near the coast of Belize.
Yes, the blue hole is real. The most famous one is the Great Blue Hole located off the coast of Belize in Central America. It is a large underwater sinkhole and popular spot for scuba diving.
Yes, there have been deaths, but not very often. They recently (December 2008) found the body of a diver on the bottom of Blue Hole. He had previously disappeared on a dive.
It is located in Lighthouse Reef Belize... there is another near the capitol city of Belmopan in the Cayo district.This one is smaller. However it is said that both holes are some how connected
Blue Hole is a diving location on east Sinai, north of Dahab, Egypt in the Red Sea. the top of which is 52m wide