description Sistema Sac Actun Overview
Sistema Sac Actun is a vast underwater cave system located in Quintana Roo, Mexico. It’s notable as the world's longest known flooded cave, exceeding 347 kilometers after connecting with Dos Ojos. Primarily formed from limestone, these caves offer unique diving opportunities and are of interest to experienced speleologists and recreational divers exploring complex subterranean environments. The system is a significant geological feature within the broader karst landscape of the Yucatan Peninsula.
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What is Sistema Sac Actun?
Sistema Sac Actun is a massive underwater cave system located in Quintana Roo, on the Caribbean coast of Mexico. It is situated near the popular tourist destination of Tulum.
How long is the Sistema Sac Actun cave system?
It is currently ranked as the world's longest known flooded cave system, measuring over 347 kilometers in mapped length. It achieved this world record in 2018 after it was discovered to physically connect with the nearby Dos Ojos system.
What is a cenote and how does it relate to Sistema Sac Actun?
A cenote is a natural sinkhole that exposes the groundwater underneath, which is highly common in the Yucatan Peninsula. Sistema Sac Actun is connected by a vast network of these cenotes, creating a massive subterranean river system.
Have archaeologists found human remains in Sistema Sac Actun?
Yes, the flooded caves of the Yucatan are famous for preserving ancient human remains and artifacts from the Mayan civilization. Sac Actun specifically housed remains of a teenage girl dating back over 12,000 years.
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