Switzerland - France
Glacier hikinglvl. 5
Level 4: An average of 6 hours of hiking per day on and off trail, and/or 700 to 1000 meters of vertical gain, and/or distances of 15 to 18 kilometers. Sections at higher elevations. Learn basic mountaineering techniques.
Level 5: An average of 6 to 7 hours of hiking per day off trail or on rugged terrain, and/or more than 1000 meters of vertical gain, and/or distances up to 20 kilometers. Sections at higher elevations. Requires knowledge and experience with mountaineering techniques for F ("facile" or easy) level routes.