Plage du Penon, beach in Seignosse, France

Plage du Penon is a beach on the Atlantic coast in Seignosse, in the Landes department of southwestern France, about 600 km southwest of Paris. Its sand faces west toward the open ocean, and the beach is reached through the dune belt that separates it from the town. The climate is mild, with average temperatures around 13 °C and about 1,870 mm of rain a year.

The beach was developed in the 1970s when Seignosse transformed from a rural community into a seaside resort. This change brought the infrastructure needed for visitors and shaped the region's growth for decades to come.

The beach takes its name from the Penon stream, whose mouth opens onto the sand at the southern end of Seignosse. Surf schools gather here in summer, and the wooden walkway La Balade sur la Dune is used by walkers heading north along the dunes toward the neighbouring beach of Les Estagnots.

Lifeguard supervision operates daily, especially during summer months when more visitors arrive. It is advisable to arrive early in the morning to find a good spot, as the beach becomes crowded on good weather days.

An elevated wooden pathway called La Balade sur la Dune stretches about 130 meters along the beach and offers surprising views into the distance. On clear days, visitors can spot the Pyrenees mountains on the horizon from this walkway.