The Black Forest (walking, MTB and road)?

Looking at the forecasts across Europe next week, and the northern Black Forest seems favourable.

Looking at camping for the week, likely Bad Liebenzell as I went there 15 years ago and my parents went last year reporting it is just as nice.

Any pointers on MTB, road or interesting walking? I’ll have both bikes and a pregnant wife who is happy with very tame MTB (14 weeks). I remember hiring a bike at Bad Wildbad in the early 00’s- is that still the best trails in the area?

Any other pointers? Swimming sports would be particularly favourable for the other half.