What is the largest lake in a cave?

Dragon's Breath Cave, in Namibia's Otjozondjupa Region, is home to the world's largest non-subglacial underground lake, with an area of about 2 hectares (4.9 acres). The lake's exact depth is unknown, but it is considered at least 430 feet deep. The cave sits around 330 feet below the Earth's surface.



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Deep inside a mountain near Sweetwater in East Tennessee is a remarkable body of water known as The Lost Sea. Listed by the Guinness Book of World Records as America's largest underground lake, the Lost Sea is part of an extensive and historic cave system called Craighead Caverns.

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Planning a Visit? Mammoth Cave in Kentucky is the world's longest known cave system, with more than 400 miles explored, and one of the oldest tour attractions in North America. Mammoth Cave National Park preserves the cave system, a part of the Green River Valley, and the rolling hills of south central Kentucky.

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Geology of Lake Inferior Lake Inferior is an underground lake that is located beneath Lake Superior. It is believed to be formed by a process known as karstification, which is the dissolution of limestone and dolomite rock. This process creates sinkholes, caves, and underground rivers and lakes.

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Veryovkina Cave (also spelled Verëvkina Cave, Abkhaz: ????????? ?????, Georgian: ??????????? ??????, romanized: veriovk'inis mghvime) is a cave in Abkhazia, an occupied region of Georgia. At 2,223 meters (7,257 ft) deep, it is the deepest-known cave on Earth.

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Technically, a dead zone is hypoxic (water with low levels of dissolved oxygen) or anoxic (water that does not contain dissolved oxygen) areas without enough dissolved oxygen to support most aquatic life. Dead zones can form after waters become stratified in the summer and surface and bottom waters do not mix.

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At 1,943 feet (592 meters), Crater Lake is the deepest lake in the United States and one of the deepest in the world. The depths were first explored thoroughly in 1886 by a party from the U.S. Geological Survey.

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Lake Baikal, in Siberia, holds the distinction of being both the deepest lake in the world and the largest freshwater lake, holding more than 20% of the unfrozen fresh water on the surface of Earth. It is also the oldest freshwater lake in the world, with an estimated age of 20 million to 25 million years.

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Lake sturgeon are the largest fish in Lake Superior. They are among the oldest fish in the lake too. Did you know that a lake sturgeon can live to be older than 100 years? This species of fish has also been around for a long time—about 150 million years.

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Siscowet lake trout, kiyi, deepwater sculpin, round goby, crayfish, shrimp, and other invertebrates live at the bottom of Lake Superior. Some plants like algae and seaweed also grow at these depths.

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Lake Superior holds a massive volume of water because of its enormous inland basin and the hundreds of rivers that feed it.

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