to do absolutely!
the rise of le Grand Pic of la meije 3983 m and crossing the ridges. This is the really important race in a life of Mountaineer. the difficulties of climbing are not extreme, but must be at ease in climbing in 4 big and ready for a long day (happiness).
There are all the ingredients of a good recipe of mountaineering: very welcoming shelters (promontoire and aigle), climbing on a great rock, a pointed Summit, reminders in the descent, an ice gully, tapered edges, a passage amazing panorama... it's my favorite in the World Mountaineering routes !