Sac Actun, an amazing world under the jungle

Hidden under the jungles of the Riviera Maya there is an underground river that is now recognized as the longest underwater cave system in the world. We now plunge into its cool and crystal clear waters to rediscover secrets from the past preserved by the cold darkness through millennia.

Over 248 cenotes (sinkholes that serve as an entrance to the cave system) have been identified to form part of this sprawling cave complex, including some of the area’s most popular cenotes like Cenote Sac Actun, Cenote Dos Ojos, and Cenote The Pit. These cenotes are open to the public and are ideal to visit with your whole family; here you will be able to enjoy a day swimming, snorkeling, or SCUBA diving in one of the many cenotes of this great system.

Teams of scientists and explorers have studied over 347 kilometers of this cave system and have found a treasure trove of archaeological and paleontological remains. From clay and jewelry offerings and human sacrifices from the Mayan civilization to mammoths, giant sloths and other animals that lived in the area thousands years ago. Perhaps the most amazing of all is the skull of a girl that lived here over 12,000 years ago; a discovery that rewrote the history of how humans colonized America.