Last Wednesday, after ten months of work, the Underwater Exploration Group of the Great Maya Aquifer Project (GAM) found a connection between two of the most extensive flooded cavern systems on Earth—Sac Actun and Dos Ojos, both in Mexico's Yucatán Peninsula—now forming the world's largest known flooded cave, with a length of 215 miles.
As a result of this same search, the exploration group of GAM has registered another important system with a length of 11 miles, until now called "the mother of all cenotes." It has a maximum depth of 65 feet and is located north of Sac Actun. From what is known so far, it is an individual system, but the team of explorers may be able to connect it to Sac Actun as well.
Tulum has become a mecca of cave diving. Underwater explorers from different latitudes have dedicated a great part of their lives to exploring this landscape. Among them, cave explorer Bil Phillips co-founded the Quintana Roo Speleological Survey, a database with detailed maps of these complex systems that is a tool to understand and protect the area.
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