Suunto will become the official timing partner of Great Swim, Europe's biggest open water swim series, for the 2017 season. As part of the deal, the Finnish brand will also become the title sponsor of the London event. The Great Swim is held in lakes, lochs and urban docks, and offers swimming enthusiasts of all ages and abilities a variety of distances, ranging from a half mile, for beginners, to a 10k marathon swim. The Suunto Great London Swim will take place on July 1.