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Inside the world's largest underwater cave that's nearly 215 miles long
Sistema Sac Actun in Mexico's Yucatan Peninsula is the world's largest underwater cave system, stretching an incredible 215 ...
The world's longest underground river is an epic 95 miles long
Sistema Sac Actun is the world's longest underground river, stretching an astonishing 95 miles beneath the Yucatan Peninsula ...
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The Most Stunning Cenotes Near Cancun That Aren't Full of Tourists
Sac Actun is a prime example. This underground river and cave system is among the longest in Mexico, measuring nearly 260 miles long with a maximum depth of 300 feet. There are 111 cenote ...
The world's largest underwater cave that's an incredible 215 miles long
Sistema Sac Actun is the world's largest underwater cave at 215 miles, a breathtaking labyrinth of nature and history beneath ...