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The Picardy coastline extends over 70 km: from the Bresle valley (to the south) to the Bay of Authie (to the north). From cliffs to pebbles, from the Bay of Somme to long sandy beaches, visit the 7 seaside resorts: marvels of Belle Epoque architecture in Mers-les-Bains and Ault, boardwalk paths and beach huts in Cayeux-sur -Sea, medieval town of Saint-Valery-sur-Somme, small fishing port of Crotoy, dunes and pine forest in Quend-Plage-les-Pins and Fort-Mahon-Plage.