Jellyfish Lake, Eil Malk Island, Palau, Pacific Ocean

Snorkeling in Jellyfish Lake is a popular activity for tourists to Palau. Several tour operators in Koror offer trips to the lake. Eil Malk island is approximately a 45 minute boat ride from Koror. The lake is accessed by a short trail from the beach on Eil Malk to the lake.
Scuba diving by tourists in the lake is not allowed. Two reasons are put forward for this:
- The bubbles from scuba tanks can harm the jellyfish if they collect beneath their bell.
- The anoxic layer that begins at about 15 meters contains high concentrations of hydrogen sulfide which can be absorbed through the skin of a diver which can lead to death.