After deciding to get the Sat eve tunnel, I had to look for a stopping place not far away. Normally, I drive off towards Aras/Troyes etc. and use the back rds, but this time will be on the A16 for a while. About an hours drive south is an aire called La Baie de somme, and apparently this has quite a few designated camper/caravan places to park the night and like most in France…It’s free!