Begin this epic voyage at fort william and follow the historic pony track up onto the plateau reach the old summit observatory up on the edge of the colossal north face prepare to deal with a variety of conditions on a clear day half of scotland will be visible from the summit however it can snow on ben nevis for 365 days of the year so there may be little or no visibility an experienced guide will trek at a steady pace but more experienced walkers can scramble along the narrow ridge of