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Caption: epa03845392 US swimmer Diana Nyad waves after starting her fifth attempt to swim between Cuba and Florida, in Havana, Cuba, 31 August 2013. Nyad started her fifth attempt in an expected 80-hours journey without a sharks protection device. EPA/Ernesto Mastrascusa /LANDOV   Photographers/Source: ERNESTO MASTRASCUSA/EPA /LANDOV
Caption: epa03845392 US swimmer Diana Nyad waves after starting her fifth attempt to swim between Cuba and Florida, in Havana, Cuba, 31 August 2013. Nyad started her fifth attempt in an expected 80-hours journey without a sharks protection device. EPA/Ernesto Mastrascusa /LANDOV   Photographers/Source: ERNESTO MASTRASCUSA/EPA /LANDOV

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Diana Nyad: 'Chase your dreams'

Swimmer Diana Nyad successfully swims from Havana, Cuba, to Key West, Florida, on her fifth attempt at the feat.

Diana Nyad: 'Chase your dreams'

Swimmer Diana Nyad successfully swims from Havana, Cuba, to Key West, Florida, on her fifth attempt at the feat.