Cossacks help a boy to take a bath in the icy waters of a lake during the celebration of the Epiphany holiday near the village of Leninskoe. Photo Vyacheslav Oseledko/AFP/Getty
Participants wearing Kokoshnik, the Russian traditional headwear, perform during winter swimming festival in the town of Podolsk, Russia. Photo Maxim Shemetov/Reuters
A swimmer reacts after getting into the ice cold water at Tooting Bec Lido, in south west London today at sunrise on a freezing winter morning. Photo Justin Tallis/AFP/Getty
People participate in the annual public Lake Zurich crossing swimming event in Zurich Switzerland
Swimmers enter the water for the start of the women’s marathon at Fort Copacabana during the Rio Olympic Games
Men’s 200m Butterfly Final. Michael Phelps of USA competes on his way to winning the gold medal
A tourist dives into the water at a resort in Antalya, Turkey
A man jumps into the water in a swimming pool in Kleinmachnow, Germany
Hannah Miley wins her heat in the Women’s Open 400m IM during day one of the British Swimming Championships at Tollcross International Swimming Centre, Glasgow
Members of the South Korean Navy Ship Salvage Unit, special forces in charge of rescue missions during maritime accidents, jump into the sea in a winter exercise at Changwon, South Korea
Two penguins swim in their pool while others stand outside the water in their enclosure at Frankfurt Zoo
Mario Tama/Getty Images
Residents from the nearby Providencia ‘favela’ community swim and cool off in the polluted Guanabara Bay in the historic port district in Rio de Janeiro, Brazil. The Providencia ‘favela’ is considered to be the oldest in Rio. The polluted bay will host sailing events during the Rio 2016 Olympic Games. Ahead of the games, the port district is undergoing a controversial multibillion dollar urban renewal program although some projects have been delayed in the midst of Brazil’s recession. Many parts of the port district retain descendants of African slaves along with Afro-Brazilian historical locations including the area where samba music is thought to have been born in Rio.
Competitors start in a men’s 50m freestyle heat at the Aquatics World Championships in Kazan, Russia today.
Hungary’s Liliana Szilagyi swims in a women’s 200m butterfly heat at the Aquatics World Championships in Kazan, Russia
A spectator watches the morning heats at the Swimming World Championships in Kazan, Russia on Monday
Swimmers start the women’s 10km open water race at the Aquatics World Championships in Kazan, Russia.
Members of Team France perform in the synchronised swimming team technical final at the Aquatics World Championships in Kazan, Russia today.
Spain’s Ona Carbonell performs in the synchronised swimming solo free routine preliminary at the Aquatics World Championships in Kazan, Russia on Monday
Iraqis swim at an irrigation canal on the outskirts of Baghdad as temperatures reach close to 50 degrees Celsius (122F) as authorities declared a holiday