Most people would never fathom the idea of swimming with sharks. But Michael Phelps is not your everyday swimmer. For Discovery Channel's Shark Week, the Olympic swimmer is racing a shark in a race of a lifetime. Phelps said that he has always wanted to swim with Sharks and that this show is something of a dream come true. The swimmer said the hardest part of the race was preparing himself, especially since he dislikes swimming in cold water. Shark Week begins on July 30th.