Underground lake

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Subterranean isle on one of the 22 lakes in the Cross Cave in Slovenia

An underground lake or a subterranean lake is a lake under the surface of the Earth. Such a lake may be associated with caves, aquifers, or springs. They are typically very low in salinity.

The largest non-subglacial underground lake in the world is Dragon's Breath Cave, Namibia, with an area of almost 2 hectares (5 acres)[1] and the second largest is Craighead Caverns in Tennessee, United States of America.


  1. "Dragon's Breath, Namibia". National Geographic. Retrieved 28 August 2012. 

See also

External links

Media related to Underground lakes at Wikimedia Commons