Cave Diving in Dan's Cave and Ralph's Cave, Abaco.
For a trip report, have a look at advanceddivermagazine.com/articles/crystal/crystal.html

Steve Bogaerts makes a dive into a deep Sinkhole with unusual formations in
sidemount configuration using the Razor Harness.
For more info on sidemount & cave diving visit www.gosidemount.com or www.aztecdiving.com

Dr. Liane Steward cave dives in a cenote to reveal a spectaucular hidden world as he tells
the story of the colossal meteor strike 65 million years ago that created them and
thereby triggered the extinction of the dinosaurs. Stunning clip taken from ground-breaking
BBC series.
Watch more high quality videos on the Explore YouTube channel from BBC Worldwide here: http://www.youtube.com/bbcexplore