swimming

People participate in the annual public Lake Zurich crossing swimming event in Zurich, Switzerland August 24, 2016

Arnd Wiegmann/Reuters

People participate in the annual public Lake Zurich crossing swimming event in Zurich Switzerland 

People cool off at a swimming pool in Daying county

Reuters

People cool off at a swimming pool in Daying county, Sichuan Province, China 

2016 Rio Olympics - Marathon Swimming - Final - Women's 10km Marathon Swimming - Fort Copacabana - Rio de Janeiro, Brazil - 15/08/2016.   Swimmers enter the water for the start of the marathon.

Toby Melville/Reuters

Swimmers enter the water for the start of the women’s marathon at Fort Copacabana during the Rio Olympic Games

 Michael Phelps (USA) of USA competes on his way to winning the gold medal.

Stefan Wermuth/Reuters

Men’s 200m Butterfly Final. Michael Phelps of USA competes on his way to winning the gold medal

ANTALYA, TURKEY - JULY 13: A tourist dives into the water at a resort on July 13, 2016 in Antalya, Turkey. Russian President Vladimir Putin last month officially lifted travel restrictions on tourism to Turkey. Russia had banned agency tours to Turkey after a diplomatic crisis erupted when Turkey downed a Russian jet on the Turkey - Syrian border in November 2015.  Turkey's tourism is currently in crisis after a series of terrorist attacks, most recently the bombing of Ataturk International Airport  tourists numbers have plummeted. The tourist city of Antalya, popular with Russian and European tourists has been hit hard, in May overall visitor numbers to Turkey dropped 34.7 percent and according to figures released by Antalya airport, the number of Russian tourists had dropped 98.5 percent in June, creating one of the worst tourist seasons on record. Antalya is home to some 40,000 Russians permanently living and working in the city, with many working in the tourism sector, local businesses have have felt a ripple effect from the tourism downturn forcing job losses and business closures. The first Russian flight carrying package tourists to Turkey arrived in Antalya on July 9, 2016 bringing hope to local business and tour operators.  (Photo by Chris McGrath/Getty Images)

Chris McGrath/Getty

A tourist dives into the water at a resort in Antalya, Turkey 

TOPSHOT - A man jumps into the water of ...TOPSHOT - A man jumps into the water of the Freibad Kiebitzberge public open air swimming pool in Kleinmachnow near Potsdam, northeastern Germany, on May 9, 2016. / AFP PHOTO / dpa / Ralf Hirschberger / Germany OUTRALF HIRSCHBERGER/AFP/Getty Images

Ralf Hirschberger/AFP

A man jumps into the water in a swimming pool in Kleinmachnow, Germany

Craig Watson/PA

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 

Special forces training tp overcoming the cold...epa05096762 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, 398 kilometers southeast of Seoul, South Korea 11 January 2016.  EPA/STRINGER SOUTH KOREA OUT

EPA

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 in the zoo in Frankfurt, Germany, Monday, Dec. 7, 2015. (AP Photo/Michael Probst)

Michael Probst/AP

Two penguins swim in their pool while others stand outside the water in their enclosure at Frankfurt Zoo

Residents from the nearby Providencia 'favela' community swim and cool off in the polluted Guanabara Bay

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, August 7, 2015.

Stefan Wermuth/Reuters

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, August 5, 2015

Stefan Wermuth/Reuters

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, Monday, Aug. 3, 2015

Michael Sohn/AP

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.

Stefan Wermuth/Reuters

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 July 27, 2015.

Michael Dalder/Reuters

Members of Team France perform in the synchronised swimming team technical final at the Aquatics World Championships in Kazan, Russia today.

Spain's Carbonell performs in the synchronised swimming solo free routine preliminary at the Aquatics World Championships in Kazan

Michael Dalder/Reuters

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 th...Iraqis swim at an irrigation canal on the outskirts of Baghdad as temperatures reach close to 50 degrees Celsius (122 F) and authorities declared a holiday, on July 16,  2015 .  AFP PHOTO / AHMAD AL-RUBAYEAHMAD AL-RUBAYE/AFP/Getty Images

Ahmad Al-Rubaye/AFP/Getty

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 

People swim during the annual public Lake Zurich crossing swimming event in Zurich...People swim during the annual public Lake Zurich crossing swimming event in Zurich July 1, 2015. The participants crossed Lake Zurich over a distance of 1,500 metres (4,921 ft).  REUTERS/Arnd Wiegmann

Arnd Wiegmann/Reuters

People swim during the annual public Lake Zurich crossing swimming event in Zurich 

Team Indonesia start their routine in their Team Technical and Free Routine synchronized swimming finals at the Southeast Asian Games in Singapore June 3, 2015.

Edgar Su/Reuters

Team Indonesia start their routine in their Team Technical and Free Routine synchronized swimming finals at the Southeast Asian Games in Singapore

Indonesians jump into the water from a docked tugboat across from the prison island of Nusakambangan in Cilacap, Central Java.

Darren Whiteside/Reuters

Indonesian children jump into the water from a docked tugboat across from the prison island of Nusakambangan in Cilacap, Central Java.