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Cenote Chelentún considered for training by many instructors, as is mostly cenote cavern with direct access cuzamaa surface and a maximum depth of 18 meters (60 feet), with temperature of 26 degrees and visibility of 50 meters, but has two Cuevas. First on the right side descending to a depth of 30 meters (100 fts).
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Second in the background on the right side starts as less restrictive and becomes more restrictive, this is over 100 meters and reaches a penetration depth of 40 meters (130 fts), entering open good visibility, but leave this It will be a couple of meters (modifying kick and equipment). NO currently he lifeline.