Popularized
by a Jacques Cousteau television special, this has become the most
famous dive site in all Belize. If you are interested in diving this
site, we can provide day and/or overnight dive trips from Ambergris
Caye, Belize City or various other offshore Cayes and Atolls.
Like a giant pupil
in a sea of turquoise, The Blue Hole is a perfectly circular limestone
sinkhole more than 300 feet across and 412 feet deep. The array of
bizarre stalactites and limestone formations which mould its walls
seem to become more intricate and intense the deeper one dives. Near
to The Blue Hole, one of Belize's largest protected areas, Half Moon
Caye Natural Monument, encompasses 10,000 acres of the atoll and 15
square miles of surrounding waters.
The
diameter of the circular reef area stretches for about 1,000 feet
and provides an ideal habitat for corals to attach and flourish. The
coral actually breaks the surface in many sections at low tide. Except
for two narrow channels, the reef surrounds the hole. The hole itself
is the opening to a system of caves and passageway that penetrate
this undersea mountain. In various places, massive limestone stalactites
hang down from what was once the ceiling of air-filled caves before
the end of the last Ice Age. When the ice melted the sea level rose,
flooding the caves.
The temperature
in the Blue Hole at 130ft is about 76F with hardly any change throughout
the year at that depth.
For
all the practical purposes the over 400-foot depth makes the Blue
Hole a bottomless pit. The walls are sheer from the surface until
a depth of approximately 110 feet where you will begin to encounter
stalactite formtions which actually angle back, allowing you to dive
underneath monstrous overhangs. Hovering amongst the stalactites,
you can't help but feel humbled by the knowledge that the massive
formation before you once stood high and dry above the surface of
the sea eons ago. The feeling is enhanced by the dizzying effect of
nitrogen breathed at depths. The water is motionless and the visibility
often approaches 200 feet as you break a very noticeable thermocline.
In the deeper
waters of the Blue Hole itself, you might see a curious blacktip tiger
or hammerhead shark, but on most dives you won't see anyone except
your dive buddy. Little light reaches the depths of the Hole and water
does not circulate freely. As a result, the deeper areas inside the
Blue Hole don't have the profusion of life associated with most drop-offs.
But as you venture into the shallows around the rim of the Blue Hole
to off-gas after your dive, you will discover a wonderful area filled
with life.