Dragon’s Breath Cave In Namibia Holds the World’s Largest Underground Lake

Be warned: This cave not for the feint of heart.

46km north of Grootfontein, there is a cavern, known as the Dragon’s Breath Cave.

Deep down this cave, is the World’s largest underground non-subglacial lake, which was discovered in 1986 by the South African Speleological Association and named for the humid air that is felt emanating from its entrance.

Dragon’s Breath Cave

Its unique conditions, zero-sunlight conditions, little wave action to kick up sediment and its stable temperature, allow the existence of one of the world’s rarest and most isolated species: the golden cave catfish,Clarias cavernicola, only found here.

cave namibia


This species is endangered and may have a population of less than 200 catfish. Access to the interior is difficult – involving climbing, ropes, narrow tunnels and ledges followed by a drop from the roof of a vast cavern in order to finally reach the water a full hundred metres below. Surface area is almost 2 hectares. Depth: beyond 100 m, its bottom has not been surveyed yet.

xplorers descending on to the surface of the subterranean lake. (Image via Underwater Video)

cave explorers



Written by PH

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