swimmer

A swimmer practices in the waters of Copacabana beach as the sun rises in Rio de Janeiro

Ricardo Moraes/Reuters

A swimmer practices in the waters off Copacabana beach as the sun rises in Rio de Janeiro, Brazil.

Charity swimmer Sean Conway, 32, arriving at John O'Groats, in the north of Scotland, after being the first person to swim from Lands End to John O'Groats.

Andrew Milligan/PA

Charity swimmer Sean Conway, arrives at John O’Groats, in the north of Scotland, after being the first person to swim from Lands End to the tip of Great Britain. The venture over 1,448 km took Mr Conway, from Cheltenham, 135 days

Australian swimmer Chloe McCardel starts her swim to Florida from Havana, Cuba

Franklin Reyes/AP

Australian swimmer Chloe McCardel starts her swim to Florida from Havana, Cuba on Wednesday.