Jellyfish Lake (Palauan: Ongeim'l Tketau, “Fifth Lake”) is a marine lake located on Eil Malk island in Palau. Eil Malk is part of the Rock Islands, a group of small, rocky, mostly uninhabited islands in Palau's Southern Lagoon, between Koror and Peleliu. There are about 70 other marine lakes located throughout the Rock Islands. Jellyfish Lake is one of Palau's most famous dive (snorkeling only) sites. It is notable for the millions of golden jellyfish which migrate horizontally across the lake daily.

Princess Diana relaxes on the sand during a visit to the beach on the Caribbean Island of Nevis January 4, 1993. (Photo by Mark Cardwell/Reuters)

A huge colony of Pacific Walrus on Arakamchechen Island in the Northern Bering Sea. (Photo by Francois Gohier/Ardea/Caters News)

Russian supermodel Irina Shayk shares a snap from an “island summer nite (sic)” in the last decade of August 2022. (Photo by irinashayk/Instagram)

Rockhopper penguins live up to their name as they navigate the rugged coastline of Marion Island in the southern Indian Ocean. (Photo by Thomas P. Peschak)

A man walks at the empty Karon beach on Phuket Island, Thailand on April 1, 2021. Picture taken with a drone. (Photo by Jorge Silva/Reuters)

Ex On The Beach star Charlotte Dawson out on the town with friends on the party island Ibiza, Spain on October 3, 2016. (Photo by Jon Baxter/ICelebTV)

The Nicobar pigeon (Caloenas nicobarica) is a pigeon found on small islands and in coastal regions from the Nicobar Islands, east through the Malay Archipelago, to the Solomons and Palau. It is the only living member of the genus Caloenas and the closest living relative of the extinct dodo.