I've booked most of our accommodation for a 3 week family holiday this August. We're driving through Belgium to Luxembourg City, the Black Forest in Germany, Lucerne in Switzerland before finishing off in Center Parcs in France. Tripadvisor is great, as are some of the guidebooks but I'd love some suggestions from families that have stayed in these areas.
We have 6 nights near Freiburg im Breisgau then 6 nights in Lucerne. We want to go up some mountains, do boat trips, swim in lakes or outdoor swimming pools, easy hikes and bike rides, nice towns to wander round and visit a couple of good museums. Oh, and eat Swiss chocolate!
I'm also wondering about Europa Park, 9yr old DD would love it but 14 year old DS doesn't like fast rides so not sure if there's enough for him to do.