The dune is not easy to conquer. How many times over the centuries has she rejected the attempts of dwelling and installation of man. Lively, moving, indomitable, she demands a lot to support her. Today, partly stabilized by the forest environment that surrounds it, the dune has finally become more welcoming. This tour shows the exceptional diversity of this natural environment, classified Natura 2000. Each of the present parts, trees and shrubs, flowers and insects, and of course men, are constantly struggling to maintain this very fragile balance, to be covered respectfully.