Focus on VEMORK, scene of the daring sabotage action celebrated in The Heroes of Telemark. Learn all about the dramatic events of 1943 from your Local Guide, and also gain an insight into the technology of hydroelectric power generation, one of the pillars of Norway’s economy. Leave the narrow Rjukan Valley via Lake Tinnsjø, where saboteurs sank a ferry loaded with heavy water, dashing Nazi hopes of winning the race for the atomic bomb. Before returning to Oslo in the afternoon, admire HEDDAL STAVE CHURCH, the largest of the country’s remaining medieval wooden churches. (Breakfast)