Hello! I will be in Strasbourg in less than two weeks. We have a lot planned (going to many of the villages in Alsace) and even doing a day trip to Heidelberg. We have two free days and are looking to do another day trip somewhere (preferably outside of France)
Any recommendations? We're thinking about Freiburg but want to hear other options.
Note: we will be going to Switzerland after Strasbourg (to Basel, Zurich, and Chur)