What to do on the return route from Monaco next month?

[V8HSV]

Going to take Dianne to the south of France next month, staying in Monaco on a Thursday (hotel by the harbour) leaving us Fri, Sat & Sun to get back to Le Havre late PM on the Sunday.

My question is can any recc a route, places of interest, places to stay on the way back? The idea being to take in the French Alps & looking for ideas based on personal experiences, your feedback would be greatly appreciated.

[V8HSV]

Thanks Paul, was looking at including Luxemburg so the museam is close by, chapagne tour, nice idea...

will

[V8HSV]

Been there Jason, very nice too