In 2003 four friends stood at Utö in the Stockholm archipelago and made a bet: the team that arrives last in Sandhamn pays for the hotel, dinner and drinks. Utö to Sandhamn is 75 km, with 10km of open-water swimming and 65km of trail running across 26 islands. In 2005 two of the original four, Michael Lemmel and Mats Skott were asked if they could turn what had started out as a bet into a serious race. Thus ÖTILLÖ was born and the inaugural edition of swimrun was held in 2006. For the first couple of years only 11 teams started, with just two crossing the finish line. Then something happened: teams realised that there’s only one way to cover the distance between sunrise and sunset: keep moving and become an amphibian! The swimrun movement is a revolution in endurance sports; inspired by the prototypal ÖTILLÖ race, there are now competitions all over the world. Addnature is the #1 online shop for swimrun equipment and much more.