Dunkirk to interlaken
 

Hi all new to this site, but does anybody have any good routes avoiding motorways, from Dunkirk down to Switzerland , I've got two days to get down there?? Any advice would be appreciated? Don't mind some motorway miles
:scooter::scooter:

In densely populated north/east France, going off the motorways just means you sit in traffic breathing lorry fumes.

Google says it's an 8,5 hour drive on the motorways. Do it in one day, spend the other day riding in the mountains.