We are doing a self-guided hiking trip of the Tour du Mont Blanc, ending in Chamonix in mid-August. We have a few free days after finishing and are trying to figure out where to spend them. We are open to places within a day's train ride away. Any recommendations? We are usually active travelers (and are in our early 30s) but will probably want to be taking it easy after the hike. We will have been in Geneva before the hike, and Zurich is not high priority because we have been before.
Any suggestions welcome! Thoughts about Nice, Marseille, possibly somewhere in the French countryside?