Diver exploring a freshwater Limestone sinkhole / Cenote called 'The Pit' - a traverse to 'The Blue Abyss' with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008. Model released  -  Robert Smith
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Robert Smith / Diver exploring a freshwater Limestone sinkhole / Cenote called 'The Pit' - a traverse to 'The Blue Abyss' with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008. Model released
Freshwater Limestone sinkhole / Cenote called 'Sistema Mayan Blue' with Stalagtite formations,  Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Freshwater Limestone sinkhole / Cenote called 'Sistema Mayan Blue' with Stalagtite formations, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring a freshwater Limestone sinkhole / Cenote called 'Three stars' Tulum, Quintana Roo, Mexico, September 2008 Three Stars  -  Robert Smith
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Robert Smith / Diver exploring a freshwater Limestone sinkhole / Cenote called 'Three stars' Tulum, Quintana Roo, Mexico, September 2008 Three Stars
Diver exploring bones at a freshwater Limestone sinkhole / Cenote called ' The Pit' Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring bones at a freshwater Limestone sinkhole / Cenote called ' The Pit' Tulum, Quintana Roo, Mexico, September 2008
Diver exploring a freshwater Limestone sinkhole / Cenote called 'Sistema Xunaan Ha' Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring a freshwater Limestone sinkhole / Cenote called 'Sistema Xunaan Ha' Tulum, Quintana Roo, Mexico, September 2008
Diver exploring a freshwater Limestone sinkhole / Cenote called 'Sistema Xunaan Ha' Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring a freshwater Limestone sinkhole / Cenote called 'Sistema Xunaan Ha' Tulum, Quintana Roo, Mexico, September 2008
Diver exploring at the surface of a freshwater Limestone sinkhole / Cenote called 'Sistema Xunaan Ha' Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring at the surface of a freshwater Limestone sinkhole / Cenote called 'Sistema Xunaan Ha' Tulum, Quintana Roo, Mexico, September 2008
Diver exploring a freshwater Limestone sinkhole / Cenote a traverse to 'The White River' with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring a freshwater Limestone sinkhole / Cenote a traverse to 'The White River' with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring a freshwater Limestone sinkhole / Cenote called 'The Pit' - a traverse to 'The Blue Abyss' with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring a freshwater Limestone sinkhole / Cenote called 'The Pit' - a traverse to 'The Blue Abyss' with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring  'Don's One Hundred Dollar ' within Sistema Dos Ojosa- a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring 'Don's One Hundred Dollar ' within Sistema Dos Ojosa- a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring  'Don's One Hundred Dollar ' within Sistema Dos Ojosa- a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring 'Don's One Hundred Dollar ' within Sistema Dos Ojosa- a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring 'Sistema Carwash' a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring 'Sistema Carwash' a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring 'Sistema Carwash' a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring 'Sistema Carwash' a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring 'Sistema Carwash' a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring 'Sistema Carwash' a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring the Sistema Sac Actun, an underwater cave system situated along the Caribbean coast of the Yucatan Peninsula, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring the Sistema Sac Actun, an underwater cave system situated along the Caribbean coast of the Yucatan Peninsula, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring bones at a freshwater Limestone sinkhole / Cenote called 'The Pit' Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring bones at a freshwater Limestone sinkhole / Cenote called 'The Pit' Tulum, Quintana Roo, Mexico, September 2008
Diver exploring a freshwater Limestone sinkhole / Cenote called 'The Pit' - a traverse to 'The Blue Abyss' with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring a freshwater Limestone sinkhole / Cenote called 'The Pit' - a traverse to 'The Blue Abyss' with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring 'Sistema Carwash' a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring 'Sistema Carwash' a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring 'Sistema Carwash' a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring 'Sistema Carwash' a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008
Diver exploring a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Diver exploring a freshwater Limestone sinkhole / Cenote with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008
Freshwater Limestone sinkhole / Cenote with stalactites and stalagmites,Tulum, Quintana Roo, Mexico, September 2008  -  Robert Smith
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Robert Smith / Freshwater Limestone sinkhole / Cenote with stalactites and stalagmites,Tulum, Quintana Roo, Mexico, September 2008