I recently watched a TV programme on Discovery Channel about traveling around the World using the human power only. The Expedition 360 (formerly known as Pedal for the Planet) launched by Steve Smith and Jason Lewis in 1994 still goes on... It's all very impressive. As far as I know, Jason is currently preparing for the Indonesian leg, and Steve is no more participating in this event. He abandoned the expedition after the Hawaii Hike. Anyway, I watched the episode where they crossed the Atlantic Ocean in a small pedal boat (they are the first to pedal the Atlantic Ocean from East to West). This took them "only" 111 days.
By day 55 we had reached the mid-Atlantic Ridge and were suffering badly from salt sores, chronic tiredness and the mental stresses which build under confinement made worse by constant motion. Imagine a funfair ride which becomes irritating and ultimately nightmarish as it refuses to stop to let you off in order to maintain a positive outlook we opted to avoid depressing fatigues by both sleeping for 8-10 hours every 10 days and leave the boat to drift...
More at www.expedition360.com
and www.goals.com/Expedition360/