Amy Appelhans Gubser was a swimmer in college, but when she graduated more than three decades ago, she hung up her cap and goggles and went about the business of working as a nurse and raising two children. In celebrating Gubser’s achievement, the Marathon Swimmers Federation noted that the feat “has a reasonable claim to be the toughest marathon swim …
In August 2013, Diana Nyad, then 64 years old, was in Havana, anxiously eyeing the weather and the ocean currents, waiting for just the right moment to try to swim from Cuba to Florida. In recent months, as the release of “Nyad” has approached, decade-old questions about the way Nyad’s Cuba swim was conducted and documented have resurfaced in the …