Cenote Calavera (Temple of Doom)
Also called the "Temple of Doom," its an natural cenote very close to town of Tulum. The first adventure starts with jump to five meter wide opening from three meters. Later you will experience halocline changing colores from greenish to bluish.
Salt water make limestone bleach white with uncovered veins of other minerals.
There is one continuos guide line marking a circuit, so its comfortable for orientation.
Requiere good buoyancy due to changing of depths.