Members of the Coney Island Polar Bear Club warm up before swimming at the beach at Coney Island in New York, December 15, 2013. (Photo by Eric Thayer/Reuters)

British television presenter Maya Jama at “Love Island All: Stars” TV show in London, United Kingdom on December 16, 2023. (Photo by ITV/Love Island/Rex Features/Shutterstock)

An abandoned motorboat is seen on the bank of a bay near Krabozavodskoye settlement on the Island of Shikotan, one of four islands known as the Southern Kuriles in Russia and the Northern Territories in Japan, December 19, 2016. (Photo by Yuri Maltsev/Reuters)

The first seal pup to be born this season at a major colony of grey seals on the Farne Islands sits beside its mother on Brownsman Island, England on September 30, 2015. (Photo by Owen Humphreys/PA Images)

General atmosphere on Shipyard Island, the venue of the 24th Sziget (Island) Festival in Northern Budapest, Hungary, 14 August 2016. (Photo by Mohai Balázs/Rockstar Photographers)

One of ten little spotted kiwi is released on Motuihe Island, a conservation pest-free island close to Auckland, on March 21, 2009 in Auckland, New Zealand. Eventually up to 40 endangered kiwi birds will be relocated to the island. (Photo by Hannah Johnston/Getty Images)

Nurse's Home, North Brother Island, New York. Photographer Christopher Payne specializes in the documentation of America’s vanishing architecture and industrial landscape. His new book, North Brother Island: The Last Unknown Place in New York City, explores an uninhabited island of ruins in the East River of New York City. (Photo by Christopher Payne)

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.