Gran Paradiso Fitness & Experience Previous mountaineering experience is useful but not essential for the steady ascent of the Gran Paradiso. Crampons are worn on summit day, but prior instruction will be given in their use. A good level of fitness is required for the 1300m+ ascent on summit day. Whille the ascent involves no technical climbing, we cross a snow-covered glacier and the summit ridge is narrow & exposed, which provides a real mountaineering flavour to the ascent. You need to concentrate fully and require a reasonable head for heights with good movement skills.