Where is Europe's tallest sand dune located?

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 (37.2 mi) southwest of Bordeaux along France's Atlantic coastlines.

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 (1.35 km2)] Its height was 106.60 m above sea level as of 2018.

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.