Biggest Underwater Cave in the World Discovered in Mexico

February 21, 2018 5:27 pm Last Updated: February 21, 2018 5:27 pm

An exploration group in Mexico has discovered the biggest underwater cave in the world.

Following 10 months of underwater exploration, a group called the Gran Acuífero Maya discovered that two of the largest flooded caves in the world (known as Sac Actun and Dos Ojos) are actually connected.

Following this discovery the two caves will now be considered one and known as el Sistema Sac Actun, measuring over 215 miles in length.

“This immense cave represents the most important submerged archaeological site in the world, since it has more than a hundred archaeological contexts, among which is evidence of the first settlers of America, as well as the extinct fauna and, of course, of the Maya culture,” said Guillermo de Anda, director of the the project, according to National Geographic.

The water preserved many relics from thousands of years ago in the caves, including human remains at least 9,000 years old and animal remains from the last Ice Age, The Telegraph reported. There are remains of the Mayan culture too.

The caves got flooded when water rose over 320 feet after the last Ice Age ended estimated 11,700 years ago.

The next step for the Gran Acuífero Maya is to try to discover connections between Sac Actun and other huge cave systems in the Tulum municipality, like the 167-mile-long Ox Bel Ha System and the 57-mile-long Koal Baal System.

Credit: Instituto Nacional de Antropología e Historia via Storyful