Dr Jim Duff grew up in the UK and started climbing at 14. Jim has more than 30 years' experience of climbing, trekking and teaching wilderness medicine, first aid and leadership in the Himalaya. He was doctor on Chris Bonington's 1975 expedition, which made the first ascent of Everest's Southwest face, and on the Australian first ascent of the North face of Everest in 1984. As well as expeditions to K2 and Changabang, Jim has climbed in the UK, Alps, Norway, New Zealand and North America. In 1997 he founded the International Porter Protection Group (www.ippg.net) which has porter shelters and rescue posts in the Gokyo valley in the Everest region. Jim lives in Australia and teaches and lectures on wilderness medicine internationally.