I've got flights out to Grenoble this year, and plan to go watch a couple of the mountain stages this summer. I've never gone to watch a stage before, and haven't found too much info on what to expect when I get there. I've heard different stories about when the roads get closed etc. (anywhere from a couple of hours to a whole day before?) and would appreciate any tips from anyone who had first hand experience.
I'll be travelling around by car. Anyone got any ideas ?