The Sky Travellers is the story of an extraordinary journey of exploration - three thousand kilometres by foot, from March 1938 to June 1939, through the formidable mountains of the western highlands of Papua New Guinea. The Hagen-Sepik Patrol was Australia's last gret exploring expedition, and it marked the end of 450 years of European land exploration worldwide. It mapped and described unknown country, made first contact with many Highland peoples, established outposts, inluding Mount Hagen and found a major goldfield.