Hi Mike - sorry for the confusion, but although I now use DFDS, we haven't used it for a trip to Annecy yet (but it won't be too long!). In the past, when we've travelled via Dunkirk or Calais going East, we usually stay at Camping Mamer in Luxembourg (see my Saarlouis post for details) I don't know how that would pan out from Ijmuiden and also depends on how far you want to travel in a day, I suppose. Going to Annecy from Dunkirk, we have almost always stopped at the municipal site at Neufchateau 88300 as we usually avoid toll motorways.
John M