Doss is an avid outdoor adventurer. Over the last 25 years he has either climbed, scuba-dived, photographed, explored or conquered all that has been set before him. His background as a geologist has given him a unique outlook in the many expeditions his has lead over the years. It was back in the early 80's when he introduced long time friend and co-host Durt to rock climbing. Having climbed the face of El Capitan in Yosemite Valley 3 times, there just isn't much that will get in his way in search for the ultimate adventure.