Benoit Lecomte swam across the Atlantic Ocean in 1998, the first person to do it. His mission was to raise money for cancer. He, 31 years old at the time, was assisted every time he was in the water with wetsuits and an electromagnetic field to keep sharks away, according to the BBC. He started from Cape Cod, Massachusetts and finished in Quiberon, in northwestern France, swimming for about eight hours a day for a total of for 73. He also battled through eight storms, 45-60 knot winds and 10-20-foot waves, sea turtles, dolphins, jellyfish and extremely cold water.