The "lette grise"

The "lette grise" is a Gascon term designating a depressed area located behind the dune belt, which often shelters a very diversified vegetation and fauna. Further south, towards Tarnos, you will find the Corbeille d'Or des Sables, a plant that grows only sparingly in this unique region of the world. At Cap de l'Homy, it is possible to come across the Cytinelle, a brightly coloured plant which is the only representative of the cytinus genus in France.