A French will try to swim across the Pacific Ocean. Ben Lecomte, 51, set off from Japan on Tuesday. It will take him more than six to finish the 9,000-km swim. He will swim for hours a day to get to the coast of the USA. He will also face many . There will be sharks, jellyfish, storms, rough , and very water. He will also have to fight and any injuries he gets along the way. However, Mr Lecomte said: "The mental is much more important than the physical. You have to make sure you always think about positive."
Lecomte trained for six years for this . He has practised every by swimming in the sea to make sure he is in top physical . He also trained his . He will be very lonely and he needs to be mentally strong. He is doing the swim to raise of climate , the effects of plastic rubbish in the ocean, and the effects of the Fukushima nuclear . Scientists will check his to see how so much exercise affects the . In 1998, Lecomte made the first solo trans-Atlantic swim. When he reached dry land, his first words were, "never ".