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The classic form of a blue hole is circular, extending in
a bell shape beneath the surface. However, some open into
the edge of an oceanic wall or are simply oblong openings
in a shallow reef. In addition, not all are oceanic. Many
blue holes are found inland, hidden within the confines
of the pine forest. This has created a variety of opportunities
for exploration, many well suited for investigation by novice
to intermediate divers.
For the more advanced and trained
cave diver, The Bahamas delivers absolutely world-class
exploration experiences. Many world records have been set
in these systems over the past three decades. The deepest
known blue hole in the Bahamas reaches down to 650 feet,
and many systems drop to around 300 feet and then extend
into a network of caverns and caves at the bottom. Skeletal
remains of both humans and animals have been discovered,
somber reminders of the past, and an utterly unique repository
for Bahamian history.
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