I am a bit late with this, but I am looking for overnight stop between Boulogne and Abbeville on route National, late tomorrow night, can any one suggest.
We always stay at the Baie de Somme. It is the service area on the Motorway just before Abbeville. We have stopped there for years as our first stop. OK, it costs 12 euros for the motorway but you do save a bit on diesel. There are free showers, free wifi water and electric. Do not go where the caravans park there is a special place for motorhomes just where you drive in past the petrol pumps near service point. We have never had a problem there in 20 years. Hope this is use to you.
PJ