Cave/Cenote
Cenote Calavera
Mexico
MexicoUp to 15 m · Open Water (with a guide)
Freshwater fish · bats
See dive siteIts name means "white cave" in Yucatec Maya. Exploration began in 1987 from the Gran Cenote, some 5 km from Tulum. In early 2007 it was connected to the Nohoch Nah Chich system and became the longest in the world; in January 2018, as part of the Gran Acuífero Maya project, the connection to the Dos Ojos system (83 km) was found, bringing the whole to some 347 km. As of January 2023 its surveyed length was 259.5 km, behind Ox Bel Ha.
Depth
5–20 m
Recommended level
Technical (Cave Diver)
Average visibility
30 m
The second-longest documented flooded cave system in the world, with more than 380 km of explored galleries.
The remains of a mammoth and of a woman have been found in its galleries, and they may be the oldest evidence of the peopling of the Americas ever found in a cave. The coastal sections are low, horizontal tunnels forming mazes parallel to the shore; the inland passages are controlled by fractures and run perpendicular to it.
Sources consulted: es.wikipedia (Sistema Sac Actun); en.wikipedia (Sistema Ox Bel Ha); Northwestern University (Monroy-Ríos); CINDAQ vía Vista al Mar; Koox Diving; Aquacore Adventures
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Same country: Mexico
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Water temperature
25 °C
Current
None
Access
Shore
Best season
All year round
Recommended certification
Cave Diver
Approx. price
90 USD / dive
Same country: Mexico