Marathon swimmer ends Cuba-Florida attempt

Associated Press
British-Australian swimmer Penny Palfrey, smiles before geginning her bid to complete a record swim from Cuba to Florida, in Havana, Cuba, Friday, June 29, 2012. Palfrey aims to be the first woman to swim the Straits of Florida without the aid of a shark cage. Instead she's relying on equipment that surrounds her with an electrical field to deter the predators.(AP Photo/Ramon Espinosa)

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Penny Palfrey, a 49-year-old grandmother and veteran endurance swimmer, ended her quest early July 1 to become the first woman to swim unaided from Cuba to the Florida Keys, unable to close the gap on the last 26 miles of a more than 100-mile ocean odyssey.

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