JON TURK is the author of twenty-five environmental and earth science text books and two previous adventure travel books. He is a world-class adventurer who, in addition to his kayak expeditions, has climbed big walls in the Canadian Arctic, mountain biked across the Mongolian Gobi, and skied high peaks throughout the world. He writes frequently for many different magazines and alternates his time between Fernie, British Columbia and Darby, Montana.