Endurance swimmer Diana Nyad, 64, set off on her fifth attempt to swim from Cuba to the Florida Keys on Saturday morning.
She is seeking to become the first person to make the 110-mile swim through shark- and jellyfish-infested waters without a protective shark cage.
The Key West, Fla., resident has tried and failed the journey four times before – first in 1978 with a cage, then three times in 2011 and 2012 without a cage.
Each time she’s been defeated – by dehydration, storms, ocean currents and jellyfish stings.
[Source: Global Post]