Diana Nyad

A decade after swimming nonstop for more than two straight days from Cuba to Florida, Diana Nyad returned to the Key West beach where she completed her epic journey, helping return a rehabilitated sea turtle to the Atlantic.

What do 64-year-old swimmer Diana Nyad and 13-year-old entrepreneur Maya Penn have in common? At the TEDWomen conference in San Francisco, a range of speakers shared the ways innovation and ingenuity kept them young.

America's Cup yachts can gracefully skim above water at better than 40 mph, but Frank Deford says when he looks back at the seven seas in 2013 he'll remember 64-year-old Nyad "plowing, all by herself, freestyle, through 100 miles of surf from Havana to Key West."

Diana Nyad is planning to meet with members of the marathon swimming community who are skeptical about her 110-mile swim from Cuba to Florida, her team…

At 64, the long-distance swimmer becomes the first person to cross the Florida Straits without the aid of a protective shark cage. She swam for more than two days and traveled more than 100 miles.