The dune is composed of approximately 60 million cubic meters of sand.
It is a mobile dune that moves eastward at an average rate of 1 to 5 meters per year.
The dune effectively buries parts of the neighboring forest as it advances, occasionally uncovering tree trunks that were swallowed decades ago.
The summit offers visibility of the Cap Ferret peninsula and the Banc d'Arguin nature reserve.
The dune formation began thousands of years ago, though its current appearance is heavily influenced by 19th-century reforestation efforts.
Geologically, it is classified as a 'littoral dune' shaped by the intersection of oceanic winds and sediment supply from the Gironde estuary.
The Dune of Pilat is the tallest sand dune in Europe, rising approximately 100 to 110 meters above sea level. Located at the entrance to Arcachon Bay in France, it stretches roughly 2.7 kilometers in length and 500 meters in width. The dune is a massive accumulation of sand, estimated at 60 million cubic meters, formed by wind action and tidal currents. It is a constantly shifting environment that encroaches on the neighboring pine forest by several meters annually. The site serves as a natural barrier between the Atlantic Ocean and the Landes forest. It remains a protected natural site under the Grand Site de France label, managed to balance heavy tourist foot traffic with environmental conservation. Visitors can access the summit via stairs installed during the summer season or by climbing the sand directly.
The highest peak of the dune, looking toward the Atlantic Ocean and the Banc d'Arguin sandbank.
Climb the dune barefoot to make the ascent significantly easier than wearing shoes.
Bring plenty of water as there are no natural sources of shade on the dune itself.
Visit during the shoulder seasons to avoid the heat and the peak summer crowds.
Do not attempt the climb in flip-flops or heavy boots, which makes the soft sand ascent exhausting; avoid the hottest midday hours during July and August.
Staircases are installed annually from spring through early autumn; they are removed during winter months due to wind and erosion.
Respect the marked paths to avoid damaging the dune's fragile vegetation and ecosystem; take all trash with you.
