Cenote Calavera (Temple of Doom)
Also called as "Temple of Doom" is a natural cenote very close to the town of Tulum. The first adventure starts with a jump to five meters wide opening from three meters. Later you will experience halocline changing colors from greenish to bluish. Saltwater makes limestone bleach white with uncovered veins of other minerals. There is one continuous guideline marking a circuit, so its comfortable for orientation. Require good buoyancy due to changing of depths.