St-Cast-le-Guildo

St-Cast-le-Guildo is a seaside town in the Côtes-d'Armor department of Brittany, located on the Emerald Coast. It is known for its fine sandy beaches, including the Grande Plage de Saint-Cast, Plage des Mielles and Pen Guen, popular for swimming and water sports such as sailing and sand yachting. The marina supports regular maritime activity and serves as a starting point for coastal walks. The GR34 coastal footpath runs through the area, offering views over the Pointe de la Garde and the Bay of Fresnaye. Nearby stand the ruins of the Château du Guildo, a medieval fortress overlooking the Arguenon estuary. The region enjoys a temperate oceanic climate, with mild summers well suited to seaside holidays. St-Cast-le-Guildo lies within easy reach of well-known Breton landmarks such as Cap Fréhel and Fort la Latte, as well as the towns of Dinard, Dinan and Saint-Malo, making it a convenient base for exploring Brittany's northern coastline.