 Over the course of six weeks, they battled against some of the hardest whitewater on earth, capsizes, illness and local politics.Eventually they made it from source to sea, although were open that they had not kayaked the entire length of the journey.A two-part series "Japan's Northern Wilderness" was presented by Backshall and his wife Helen Glover and three-part series "Wild Alaska Live", co-presented by Liz Bonnin and Matt Baker, that aired in July 2017.