I am in south of France atm and need to start making my way back north. Thought it would be nice to do a 2 day mountainous walk on the way, possibly involving a hut, ideally circular or with an easy train/bus to get back to the car. Reasonably long / hard (or even a little scrambly) is fine. Any recommendations? I've chosen Annecy because weather looks reasonably ok there over the days I want (wed/Thu or maybe Fri) but open to suggestions also