Dean’s Blue Hole near Clarence Town on Long Island, Bahamas, is the
world’s deepest known “blue hole” – a term given to any deep, water
filled, vertical caves or sinkholes with an entrance below the water
surface. While most blue holes and
sinkholes reach a maximum depth of 110 meters, Dean’s Blue Hole plunges
to more than 200 meters, which makes it quite exceptional. At the
surface, Dean’s Blue Hole is roughly circular, with a diameter ranging
from 25 to 35 meters.
