Diana Nyad
U.S. swimmer Diana Nyad, 64, points towards Florida before her swim to Florida from Havana, Cuba, Saturday, Aug. 31, 2013. Endurance athlete Nyad launched another bid Saturday to set an open-water record by swimming from Havana to the Florida Keys without a protective shark cage. (AP Photo/Ramon Espinosa)
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Diana Nyad's 110-mile swim from Cuba to Florida without a shark cage, a first, took 53 hours…
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