Dean's Blue Hole - the deepest blue hole in the world

The term blue hole understand underwater cave or some deepening vertical impressive size. The biggest of the blue holes located off the coast of the Bahamas Long Island.

Dean's Blue Hole is considered the deepest in the world. To reach its bottom, you have to overcome 202 meters of water space. It is named after the owner of land in the neighborhood. For the first time, Dean's Blue Hole was subdued in the near 1992 diver named John King. The upper part of the funnel has a circular shape. However, after a few tens of meters and begins to expand in diameter is of the order of hundreds of meters.