Fewer people have rowed across the Atlantic than have climbed Everest.

Adam Rackley is among them. For 70 days he and his rowing partner ate, slept and rowed in a boat seven metres long and two metres wide, in one of the world's most extreme environments. This is his story of adventure, endurance and self-discovery.

They were following in the wake of pioneers. In 1896 a pair of Norwegian fisherman crossed the 2,500 miles in a wooden fishing dory - and their record stood for 114 years. John Fairfax, a smuggler, gambler and shark hunter, was the first to complete the feat single-handedly in 1969. Others have followed; some have not survived the attempt. This is their story, too.