Puerto Aventuras
June 2008

Members of the True Blue Dive Crew just
returned from 5 days of diving in Puerto
Aventuras, Mexico! The following pictures
were taken by Instructor Dean Henagan on
a few cenote dives. A cenote is a type of
sinkhole that acts as a surface connection
to subterranean bodies of water. Most are
in isolated areas of the rain forest and
make for fantastic diving!
Above is a picture of a diver from about 150
feet away. Cenotes are renowned for
outstanding visibility!
"The Pit" is a dive that contains human remains dating back 8,000 years.
The human entered the cenote before it was filled with water.

Cenotes contain a layer of hydrogen sulfide. These
pictures are from Cenote Angelita (featured on
Page 50 of this next months Alert Diver) and show
a huge pile of dirt and debris that formed when
the sinkhole was made sticking above the layer of
hydrogen sulfide.

The layer of hydrogen sulfide appears at
approximately 80' and is about 15' thick. The
cenote continues to a depth of 160'. Beneath the
layer of hydrogen sulfide, there is no surface light.
Caitlyn, Joey, Darrell, Dean, and Cher (with her rock star hair) start the trek
to another cenote dive. To get to most of their dives, they had to ride in a
4-Wheel drive Jeep, then follow behind a 4-Wheel drive truck, and finally
walk for the remainder of the trail to the cenote.
This is a picture of a crocodile
at the surface of a cenote.
Darrell at the platform at the
entrance of "The Pit."
Cher and Darrell Walker, Joey and Caitlyn Thomas, Tonya
and Bernad Gibbs, Dean Henegan and Luke Woodard.