World′s largest underwater cave discovered in Mexico | News | DW | 18.01.2018
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World's largest underwater cave discovered in Mexico

Divers have proven two underwater caverns in Mexico are connected. The discovery makes them the largest flooded cave on the planet. The exploratory mission has also provided insight into Mayan civilization.

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The world's biggest flooded cave

Explorers have verified that two giant underwater caverns under Mexico's Yucatan Peninsula are connected, making the 347-kilometer (216-mile) flooded cave system the largest known on the planet.

Researchers didn't discover a new cave, but proved that the 263-kilometer Sac Actun cave and 83-kilometer Dos Ojos system near Tulum ran continuously.

German underwater diver Robert Schmittner led a team for nearly 10 months to prove that the two cave systems were, in fact, one.

"This is an effort of more than 20 years, to travel hundreds of kilometers of caves submerged in Quintana Roo mainly, of which I dedicated 14 years to explore this monstrous Sac Actun system. Now everyone's job is to preserve it," said Robert Schmittner, who worked with Gran Acuifero Maya (GAM), a project to study and conserve the subterranean waters of the Yucatan.

Divers with flashlights explore an underwater cavern (Reuters)

Divers spent months exploring cave systems.

The Yucatan Peninsula is known for its beaches, Mayan ruins and cenotes, or massive sinkholes.

In Quintana Roo state, there are more than 300 cenotes.

Many are connected to a massive freshwater aquifer system that has been shown to connect to the sea.

Now researchers want to determine whether the Sac Actun cave, which due to its larger size replaces the name of the Dos Ojos cave, is connected to three other subterranean water caves in the vicinity.

A scientist explores an underwater cavern (Reuters)

Divers measured the entire cave system.

The exploration of cenotes and underground water systems has also contributed to greater understanding of the Maya and the flora and fauna of the region's past and present.

"This huge cave represents the most important submerged archaeological site in the world, as it has more than a hundred archaeological artifacts, including evidence of the first settlers of America, as well as extinct fauna and, of course, the Mayan culture," said Guillermo de Anda, a researcher at the National Institute of Anthropology and History and director of Gran Acuifero Maya.

Mexiko Yucatan Höhle 10.000 Jahre altes Skelett gefunden (picture-alliance/Arco Images GmbH)

Cenotes are a major tourist draw in the Yucatan.

cw/rc (Reuters, dpa)

 

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