Hi,
We have been taking our Dog over to France for about 4 years and so long as you follow the rules it is very simple.
This year we stopped at an Aires in the town of Arques, part of the Municiple Camping site (two Euros per night).
The Vet is just off the main Square. General De Gaulle Ave.
The Vet charged 45 Euro's - he said the UK were discussing the need for this as the Fox Tick was already in the UK.
We used to holiday All Inclusive still we got the dog and Kids cried when we took him, first year to Kennels, second year to a Friends and constantly asked if I would call home and see how the dog was - I didn't.
But the French love him (Chocolate Lab), and it would seem every Motorhome has a dog - most beaches don't allow dogs on in the Summer - which is fine as we don't want a wet dog in the Van anyway!
If you haven't got a Pet Passport you need to do it NOW, look at the time lines.
Cheers