Underground lake

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

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

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

See also[edit]


  1. ^ Kelly, Daniel (24 January 2014). "Dragon's Breath Cave Holds the World's Largest Underground Lake". Lake Scientist. Archived from the original on 1 March 2015. Retrieved 31 May 2016.
  2. ^ "Dragon's Breath, Namibia". National Geographic. Retrieved 28 August 2012.

External links[edit]

Media related to Underground lakes at Wikimedia Commons