My husband and I will be meeting my parents in Europe for our spring break (late March/ early April). We have been to Germany a few times, but they have not. My parents are in their mid to late 70s and active, but my dad can't walk long distances. We're looking for a good base to take day trips. We'll have 8-9 full days; my parents seem to want to squeeze in Switzerland too, but we'll see if that happens.
Ideally, we'd like to stay in 1-2 towns/ cities where we can homebase for 4-5 nights and explore the area. Someplace well connected by train would be important, as would having a variety of good restaurants/ places to eat and easy transportation options (either a smaller town like Rothenberg that's easily walkable, or a larger city like Munich with good transportation).
My husband and I have been to Munich, Frankfurt, Rothenberg, Bacharach, Bad Windsheim, and a few other small towns. Munich seems like an obvious choice but I'd love to hear what other suggestions people might have? Thanks!