There is a reclamation site on the outskirts of Royan, on the N150 you will find a large LeClerc, to the left of the car park is a road that takes you downhill to a trading estate, at the T junction turn left follow this past another LeClerc (building items and other outdoor things) follow this until you come to a turning on your righthand side take this and keep going until you see an airplane! at about 10 foot high (this is the entrance to the site) I would advise that you allow yourself hours to wander around and they do close at lunchtime.