Sac Actun Cave System

Cave Diver finds the World's Longest Flooded Cave

The Sac Actun and Dos Ojos Cave Systems Connection

Cave explorer Robert Schmittner (Robbie) with the Gran Acuífero Maya group, lead by National Geographic’s explorer in Mexico, Guillermo de Anda, have found the longest flooded cave system in the world. Robbie has finally found the connection between the world’s 2nd longest Cave System (Sac Actun System) and the 4th longest (Dos Ojos System), both located in the Riviera Maya, Mexico.

 

Just outside the town of Tulum, many Cave Divers have been exploring these two cave systems trying to find this connection for decades. Robbie himself had been looking for this connection for over 10 years. In January 2018, Robbie and his team of cave explorers, in the Gran Acuifero Maya project, “pushed the lines” until they found the passage that finally connected the two systems, making Sac Actun the longest underwater cave in the world.

 

This is how it works: A cave exploration may start with a single entrance point, once a second entrance is found it becomes a ´system´. When two systems connect, the larger one keeps the name as it happened in this case. At the moment of the connection, Sac Actun system had 263.79 kilometers of explored cave, while Dos Ojos had 83.3 kilometers of explored passages. In this case Sac Actun, which means White Cave in the Mayan language, keeps its name and now measures 347 kilometers, making it the longest underwater cave in the world!!

 

The Mayan Riviera has been home to hundreds of cave divers and explorers for the last 40 Years. This area of Mexico has become the best place in the world for cave diving and cave diving training. The Riviera Maya is home to the most experienced and knowledgeable Cave Diving Instructors.

 

Mexico has the longest underground river systems in the world and with the best cave diving conditions you can find anywhere. Easy access to cave entrances, thousands of entrances within a 50 kms radius, low water flow, excellent visibility, abundant speleothem formations, fossils, halo-clines, shallow depths that allow for long penetrations and a great variety of cave sizes and profiles.

 

We want to Congratulate  the explorers of the Gran Acuífero Maya project, especially Robbie as well as give tribute to the great Bil Phillips, who was part of the project.

The Evolution of Sac Actun Cave System

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