Cold-water ultra-marathon swimming is about as tough as it gets. When looking at swims, you ask if anyone has done it, if there are jellyfish, and if anyone has died trying it. On most swims, failure is more likely than success.What drives a person to swim long distances in cold water? Why attempt something could kill you?Where the Crazy People Swim lays bare the mind of a swimmer who honestly and candidly describes his fears, his motivations, and...