Sites south of Boulogne on coast?

HolidayingAdria
HolidayingAdria Forum Participant Posts: 4

We are planning our first caravanning trip abroad and unfortunately the site we would like to stay on is full.

http://www.fermedesaulnes.com/content/gb/accueil/1/ (P13 in the continental caravanning brochure)

Can anyone recommend a site nearby - we don't mind what size. Thak you.