Etape du Tour

Flying out to France tomorrow morning to act as a driver for a couple of riders taking part in the Etape du Tour. This is one of two, one day cycle rides where amateur riders tackle stages of the Tour de France.
We're flying to Geneva in Switzerland (nearest airport), picking up a hire van, and staying in Chamonix. I'd stayed there four years ago on a motorcycle trip, so it'll be good to go back.
The riders are doing 'Acte 1' of the Etape, riding from Albertville to La Toussuire-Les Sybelles, approximately 140 km with some serious climbs.

Will take lots of photos, so 'watch this space!'