Yesterday, we covered the Great Blue Hole in Belize – the world’s largest sea-hole, now today, we bring you a feature on Dean’s Blue Hole in the Bahamas. Currently the world’s deepest sea-hole at 663-feet, it’s “almost twice as deep as any of the other Blue Holes in the Caribbean that were formed when limestone chambers caved in from above.” Continue reading for a mind-blowing video, more pictures, and additional information.


Dean’s Blue Hole is roughly circular at the surface, with a diameter ranging from 25 to 35 metres (82-115 ft). After descending 20 metres (66 ft), the hole widens considerably into a cavern with a diameter of 100 metres (330 ft). Some water-filled sinkholes are deeper than Dean’s Blue Hole, Zacatón in Mexico (335 metres (1,099 ft)) and Pozzo del Merro in Italy (392 metres (1,286 ft)) among them. Dean’s Blue Hole though is the deepest known sinkhole with entrance below the sea level.


[Sources 1 | 2 | 3]

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