Top 7 Deepest Sinkholes in the World

Dean’s Blue Hole – Bahama’s – 663 feet deep

This sinkhole can also be found under the water. Dean’s Blue Hole has a depth of 663 feet. Thanks to this enormous depth, the water above the sinkhole has a very dark color, so you can view the hole from a distance. Here too the underwater world is very rich, with a large amount of tropical fish in the water.