Nicole Bengiveno, The New York Times
Diana Nyad, a marathon swimmer, works on a flexibility exercise by holding one hand and one leg in the air and then switching, during her morning workout in Ket West, Fla., July 29, 2011. When the conditions are right Nyad, who is 61, will attempt to set a record by swimming from Cuba to Florida across the shark-infested Straits of Florida in 60 hours, without leaving the water.
