The Cenotes
The Cenotes are natural caves or sink holes which provide breathtaking views, coolness and exceptional geological interest. There are 3000 such caves in the province of Yucatan, where Tulum lies.
Only 1400 of these caves have been studied and explored. There are different types of Cenotes: some of them are completely underground, some are semi underground, some are at sea level and some are open wells.
Most of the explored ones can be visited, but it is essential that you go there with an official guide, since they might be dangerous.
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