Have a read of my blog (link below, in my sig) & please, whatever you do, get yourself a copy of "Le Guide Officiel", distributed by Vicarious Books & available on Amazon.com.
Good luck, it's a great country for camping. Are you going on an adult adventure or a family holiday with kids in tow? I'm single & a solo camper, so my trip was more of an adventure.
Camping is a national pastime over there, they are so much better geared up for it, & it's so much cheaper to actually camp over there as well. I just wish I was going back, but have no plans as yet

4 Canvas tents (various sizes)
3 Plastic tents (various sizes)
& 1 Tin tent (yes, I'm a turn-coat, but it has a canvas awning)
My other passion;
My 1983 BMW 525e
France trip blog