A former serviceman from Cheltenham has set off on his quest to become the first person to swim the Atlantic Ocean.
Ben Hooper is leaving for Senegal, which will be the starting point in November for his 2,000 mile challenge.
It should take 140 days, swimming around 10 hours a day, to cross from Africa to Brazil. He's raising money for a number of charities.
You can follow updates of his progress on his blog.