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How much does it cost to swim in Jellyfish Lake?

How to Visit the Jellyfish Lake in Palau. Jellyfish Lake (Ongeim'l Tketau) is located on Eil Malk Island in Palau, which is part of the Rock Islands. It's about 45-minutes from Koror. A 10-day pass for swimming with the jellyfish is $100 USD, though this is not included in the price of most tours.



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All visitors are required to purchase a 10-day Rock Island Permit for 100 USD (50 USD if you access the Rock Islands but not the Jellyfish Lake). Take also into consideration that if you are planning to book a day tour to the Jellyfish Lake expect to pay between 100-250 USD (excluding permit costs).

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Though swimming is permitted, scuba diving is highly prohibited as the bottom layer of the lake hosts a poisonous hydrogen sulfide gas that even the lake's jellyfish don't swim near.

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Although both species of jellyfish living in the lake have stinging cells (nematocytes), they are not in general powerful enough to cause harm to humans. It has been reported that it is possible to notice the stings on sensitive areas like the area around the mouth.

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Jellyfish Lake is 400 m long and 30 m deep. Between 13-15 m, there is a pink layer of bacteria and below that, there is no light and no oxygen. The bottom water layer is filled with poisonous dissolved hydrogen sulfide gas.

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Contrary to tourist myth, the jellyfish are not “non-stinging”; rather, the lack of natural predators in this marine lake (inside an island, inside an ocean) has led them to evolve away from having very strong stinging cells, so that most of us can glide through the water, bumping into the floating, dancing clear blobs ...

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One of Palau's salt water lake is home to millions of trapped jellyfish that migrate endlessly to cultivate an algae.

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Talk to lifeguards, local residents or officials with a local health department before swimming or diving in coastal waters, especially in areas where jellyfish are common. Avoid water during jellyfish season. Stay out of the water in jellyfish areas when jellyfish numbers are high.

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Lake Malawi spans the entire coast of the eastern African nation, and is known for being home to deadly crocodiles, hippos and mosquitoes.

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The Most Dangerous Crocodile Infested Rivers In The World
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  • Crocodile River, South Africa.


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