U.S. swimmer Diana Nyad begins her swim from Cuba to Florida at the Hemingway Marina in Havana, Cuba, Friday Sept. 23, 2011. Endurance athlete Nyad will attempt for a second time to swim from Cuba to Florida in hopes of setting a world record at the age of 62. The Los Angeles woman fell short in a previous attempt at the swim last month, calling it off after 29 hours in the water and about halfway through the 103-mile (166-kilometer) journey. (AP Photo/Javier Galeano)