We immediately take the first T left and dive along passages so dark our lights seem useless. Captivating black stalactites bring to mind jail bars, hence the name of this cenote I guess. Probably haunted...
There's quite a lot of silt deposited everywhere. A thick layer of it. The mood's definitely somber but brightly clears up after the second T, where we turn right and dive down below the halocline, here at 15m, into slightly warmer and bluish salt water. Our mission area.
The tunnel down here's whitish with crusty crops of beige formations. Half an hour into the dive we pass by some old bones, supposedly from a big tapir.
When I reach 2/3 of my nitrox, I call the dive, looking forward to getting out again. For some reason, Systema Naranjal, incl. Cenote Cristal aka Naharon, Mayan Blue aka Escondido & Cenote of the Sun among others, never quite gave me a good feeling inside.
[ entrance fee: 100 Pesos ]