Greg has lived the adventures he writes about and shares with audiences around the world. His journeys have taken him to every corner of the globe. He has guided mountaineering expeditions in the Alps and Andes and paddled wild rivers in the Americas. He has trudged through deep jungles in Africa, Central America, and Asia and guided archeological expeditions across the parched Arabian Peninsula. He is a best-selling and award-winning author, who released three in-demand adventure books in 2008: Ultimate Adventures: The Rough Guide to Adventure Travel (Penguin Books), Exploring Havasupai (Menasha Ridge Press) and 60 Hikes within 60 Miles: Salt Lake City (Menasha Ridge Press).