- Jellyfish Lake
Jellyfish Lake is a well-known dive site in the Pacific island of
Palau . It is one of the rock islands, a series of small, rocky, uninhabitedarchipelago s off the coast ofKoror . Jellyfish Lake is completely isolated, but in the distant past, it had an outlet to the ocean. The outlet was closed off and the highjellyfish population was isolated and started to feed on quickly-reproducingalgae . Contrary to popular belief, the jellyfish of Jellyfish Lake do have small stinging cells, ornematocysts . However, because the stinging cells are so tiny, their sting is not detectable on most human tissue, so tourists can enjoy swimming with them much closer than would be possible anywhere else.At night, the jellyfish descend into a layer of
hydrogen sulfide which is found below 15-20m of depth.SCUBA diving in the lake is prohibited to avoid disturbing the jellyfish and also to reduce the risk of hydrogen sulfide poisoning.In two episodes of "
Survivor " (' and '), as a reward for winning a reward challenge, winners got to swim in Jellyfish Lake.External links
* [http://www.youtube.com/watch?v=GTXinF8ZVCo YouTube] - Video from under the lake
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