A Somali fisherman carries a fish from his vessel on the shores of the Indian Ocean on Liido beach, in Mogadishu, Somalia November 4, 2016. (Photo by Feisal Omar/Reuters)
Residents watch the ocean waves crash into the water front, after the passage of Hurricane Irma, in Cuba, Sunday, September 10, 2017. (Photo by Ramon Espinosa/AP Photo)
Tens of millions of red crabs make their way across Christmas Island, Australia on November 13, 2021 during their annual migration from the forest to the ocean, swamping roads and bridges. (Photo by Parks Australia/Animal News Agency)
Activists from the climate action group Ocean Rebellion perform a stunt outside The Baltic Exchange building, in London, Britain on November 16, 2020. (Photo by Henry Nicholls/Reuters)
Ocean Rebellion activists dressed as Merpeople protest against bottom trawling during a demonstration ahead of the COP26 summit, in Glasgow, Scotland Britain, October 30, 2021. (Photo by Dylan Martinez/Reuters)
A worker stands next to a Southern Two-toed Sloth at the Sloth and Friends Studio inside Hong Kong Ocean Park on August 3, 2023 in Hong Kong, China. (Photo by Vernon Yuen/Rex Features/Shutterstock)
The Puerto Princesa Subterranean River National Park is located about 50 kilometres (30 mi) north of the city centre of Puerto Princesa, Palawan, Philippines. The river is also called Puerto Princesa Underground River. The national park is located in the Saint Paul Mountain Range on the northern coast of the island. It is bordered by St. Paul Bay to the north and the Babuyan River to the east. The City Government of Puerto Princesa has managed the National Park since 1992. The park is also known as St. Paul's Subterranean River National Park, or St. Paul Underground River. The entrance to the Subterranean River is a short hike from the town of Sabang.
St Andrews University students skinny dip in the sea as May Day celebrations in St Andrews, Scotland on April 30, 2017. Hundreds of revellers ditched their clothes and bravely jumped into the bitterly cold North Sea. (Photo by Alamy Stock Photos)