Hello Bill.
We stay at the following site for at least the last two nights of our trips to France which has several benefits. The owner, who speaks very good English, arranges for your visit to the local vet at a time to suite you - the vet himself is also a pleasant chap with reasonable English and as an extra benefit, there is an immense Auchan supermarket about a quarter of a mile away from the vet where you can do all your last-minute shopping.
Hope this helps.
Olly.
Manoir de Senlecques Tel ( 0033 ) 0321 833596
45 Rue de la Fontaine
62126 Pernes les Boulogne
http://perso.wanadoo.fr/..manoirdesenlecques/
PS - Are you aware of the timing of the vet treatment in respect to your return journey? In other words, there must be more than 24 hours but less than 48 between the treatment by the vet and the presentation of your pet plus relevant documentation at the Pet Control Centre at the port.
There are also the following about whom I have no knowledge .
PAS DE CALAIS
Bernard Alcouffe, 139 Boulevard Curie, Calais
Tel: 03 21 82 15 11
Jean Debert & Dr Nowosad 138 Boulevard La Fayette, Calais
Tel: 03 21 36 67 96
Valerie Delval, 11 Place Crevecoeur, Calais
Tel: 03 21 00 71 00
Xavier Bollart, Clinique Veterinaire de la cote d'Opale, 1288 Ave de la liberation, Cucq
Tel: 03 21 94 02 56
Dominique Florent, Villa 'La Fresnaye'Le Bad'Huit,
Saint Martin-Boulogne
Tel: 03 21 91 10 73
Also, have a look at...
http://www.caninebehaviour.co.uk/public/europe.htm
Hope this helps,
Olly.