Tags: Skier.
William Bon Mardion (born October 4 1983) is a French ski mountaineer.Bon Mardion was born and lives in Arêches where he is member of the Club Multisports Arêches-Beaufort. He started ski mountaineering in 1998. He competed first as a member of the Espoirs team at the Pierra Menta race in the same year and has been member of the national team since 2006.