HAVANA (August 31, 2013)—So far, the Florida Strait has frustrated the repeated efforts of endurance athlete Diana Nyad to conquer it, but she was back in the water again Saturday for her fourth try to become the first to swim from Cuba to Florida without a protective shark cage.
She expects to take about 80 hours to make the swim, arriving somewhere between Key West and Marathon, more than 110 miles from Havana.
Nyad, 64, tried three times in 2011 and 2012.
Her last attempt was cut short amid boat trouble, storms, unfavorable currents and toxic stings from box jellyfish.
As supporters shouted, "Onward, onward!" Nyad jumped into the warm waters off Havana on Saturday to begin what she says is her last attempt at the crossing.
She said the adrenaline was "pumping very hard."