Yukon 1000 - the holy grail for adventure athletes

A Kiwi duo, Sophie Hart and Nathan Fa'avae, have taken out what some call "the world's most grueling race" - the Yukon 1000. It begins in Whitehorse, Canada, where kayakers set off for 1000 miles through rough, remote waters towards Alaska. Someone who understands just how challenging this race is Ben Lott. Ben competed in last year's Yukon 1000, four years after suffering a brain injury that nearly ended his life.