What's In Belize's Blue Hole: Undercurrent 05/2025

What's In Belize's Blue Hole

from the May, 2025 issue of Undercurrent

Subscriber Content Preview
Only active subscribers can view the whole article here

Belize's Great Blue Hole

Sinkholes are natural depressions that form when rock dissolves or collapses, creating deep voids in the ground. Oceanic sinkholes, like Belize's blue hole, typically originate from limestone caves that formed thousands of years ago when sea levels were much lower. Over time, as rising waters flooded these caves, some collapsed, leaving behind the massive, submerged sinkholes we see today.

Belize's Great Blue Hole, which is on every diver's bucket list, measures over 1,043 feet across and about 407 feet deep. In 1971, by dynamiting a route through the surrounding shallow coral, Jacques Cousteau and his Calypso crew explored the Great Blue Hole for their television series, The Undersea World of Jacques Cousteau. He was so enthralled he ranked it among his top ten scuba diving sites worldwide. Divers don't see it that way today. Everyone wants to dive it once, a been there, done that kind of dive....

Subscribers: Read the full article here

;