Grande Plage de Barneville à Portbail, Sandy beach in Barneville-Carteret, France

The beach extends about 10 kilometers along the coast between Barneville-Carteret and Portbail, featuring wide areas of fine sand and gentle sloping terrain. At low tide, exposed sand flats stretch far out, creating extensive space for walking and exploring.

Sea bathing developed at the end of the 19th century with the growth of rail and then road travel, and resorts such as those on the Côte des Isles were created, sometimes on the site of former fishing villages. Women in six-piece bathing suits changed in cabins mounted on horse-drawn carts that carried them into the water, where they descended by steps, supported by attendants in one-piece suits and watched by censors.

The name Grande Plage distinguishes the long sand strip from the smaller coves of the Côte des Isles. Since 1992 it has held the European Blue Flag every year for water quality. In summer, bathers use the free freshwater showers, and trialos systems let people with reduced mobility enter the sea.

Summer lifeguards and fresh water showers are available at several locations along the beach. Access to the water is arranged for visitors with mobility challenges through specialized equipment and pathways.

The beach faces the Écréhous archipelago and the island of Jersey, whose shelter from Atlantic swells and the warming Gulf Stream make the water here milder than on much of the coast. Since 1992 it has received the European Blue Flag every year for water quality.