Griffith is a pioneer of Alaska adventure racing whose lifetime pursuit of trekking and rafting has spanned thousands of miles and several decades. He’s a 17-time finisher of the arduous Alaska Wilderness Classic, and in the 1982 race he introduced packrafting, which has since become mainstream. In the 2008 race, he became the oldest finisher at age 80. Griffith, of Anchorage, has trekked some 10,000 miles in Alaska, Canada and beyond, and has recorded floating firsts in the Grand Canyon and other notable canyons.