Diana Nyad
Courtesy of: Diana Nyad
HAVANA, Cuba, August 31. IN what she has said is her final attempt, Diana Nyad stepped into the Caribbean Sea this morning on the Havana coastline for a swim toward the Florida Keys.

The 103-mile swim is expected to take 60 hours, which could put Nyad back on land Monday evening, if all goes to plan. This will be her fifth attempt in more than 40 years to make the swim that no one has made without the assistance of a shark tank. Even Chloe McCardel had to stop earlier this year after serious jellyfish stings.