Plage de l'Arnèche, Beach in Meschers-sur-Gironde, France

Plage de l'Arnèche is a beach on the Atlantic coast featuring wide sandy shores backed by high limestone cliffs. The cliffs are covered with thick vegetation that slopes down to meet the water.

The cliff face at l'Arnèche belongs to the Upper Cretaceous limestone of the Gironde estuary's north shore, laid down roughly 65 million years ago when a warm sea covered the region. The rock holds fossil shells and marine sediment, and the beach sits at the foot of the cliff where erosion releases fallen blocks onto the sand.

The beach sits at the mouth of the Gironde estuary in Meschers-sur-Gironde, on the Atlantic coast about 400 km southwest of Paris. Its mild climate, averaging 13 °C, draws visitors who come to walk the shore and look across the water toward the estuary's opposite bank.

You can reach the beach by descending stairs from Boulevard des Plages or following a coastal path from the nearby Plage de Suzac. The route is manageable on foot but involves some walking and climbing.

The beach sits at the mouth of the Gironde estuary, about 400 km southwest of Paris, where the climate is mild: average temperatures run from 4 °C in February to 22 °C in July, with about 1,084 mm of rain a year. The shore faces west toward the open Atlantic.