Kilian Jornet and Dakota Jones run up Chardonnet on Alpinerunning style. Start from Montroc, up to Peclerets ridge in between Tour and Argentiere glaciers and Chardonnet via Forbes ridge. Down in North route and other side of the glacier to Montroc.
Here the gps track: http://www.movescount.com/moves/move38485808
And a video of the activity: