The Dune of Pilat also called Grande Dune du Pilat is the tallest sand dune in Europe. It is located in La Teste-de-Buch in the Arcachon Bay area, France, 60 km from Bordeaux.
The dune has a volume of about 60,000,000 m³, measuring around 500 m wide from east to west and 2.7 km in length from north to south. Its height is currently 110 meters above sea level. The dune is a famous tourist destination with more than one million visitors per year. The dune is considered a foredune, meaning a dune that runs parallel to a shoreline, behind the high tide line of a beach. The dune has been observed to move landward, slowly pushing the forest back to cover houses, roads and portions of the Atlantic Wall.
