About an hour away from Geneva by car, is Annecy, France. If you don’t have a father-in-law willing to drive a mini van in a foreign country (thanks Paul), you can get here by bus.
If I have a favorite place I’ve ever visited, this would be one of the top contenders.
The “Venice of of the Alps”, Annecy is a small french town that will take you back in time. We enjoyed walking along the cobble-stoned streets winding around the canals. It could have been the rain or day we visited, but it wasn’t very crowded, which also made this a must see destination.