Regnéville-sur-Mer

The Château de Regnéville is a ruined 14th century castle in the commune of Regnéville-sur-Mer in the Manche département of France. Built at the edge of the Sienne river estuary, it was intended to protect the important dry harbour of Regnéville-sur-Mer, one of the most active of the Cotentin Peninsula from the Middle Ages until the 17th century. Partly dismantled at the end of the Hundred Years' War, it was much altered during the 17th and 18th centuries. Today it is the property of the département. Archaeological excavations and restoration work are gradually bringing it back to life.

Heugueville-sur-Sienne is a commune in the Manche department in northwestern France.

Tourville-sur-Sienne (French pronunciation: [tuʁvil syʁ sjɛn]) is a commune in the Manche department in Normandy in north-western France.

The Sienne (French pronunciation: [sjɛn]) is a 92.6 km (57.5 mi) long river in northwestern France located in the departments of Calvados and Manche, Normandy. It flows into the English Channel near Regnéville-sur-Mer. Its longest tributaries are the Soulles and the Airou. The largest towns on the Sienne are Villedieu-les-Poêles and Quettreville-sur-Sienne.

Montmartin-sur-Mer is a commune in the Manche department in Normandy in north-western France.

Agon-Coutainville (French pronunciation: [aɡɔ̃ kutɛ̃vil]) is a commune in the Manche department in the Normandy region in northwestern France.

Montchaton (French pronunciation: [mɔ̃ʃatɔ̃]) is a former commune in the Manche department in Normandy in north-western France. On 1 January 2016, it was merged, together with the commune of Orval, into the new commune of Orval-sur-Sienne.

Hauteville-sur-Mer (French pronunciation: [otvil syʁ mɛʁ], literally Hauteville on Sea) is a commune in the Manche department in Normandy in north-western France.

Saint-Malo-de-la-Lande (French pronunciation: [sɛ̃ malo də la lɑ̃d]) is a commune in the Manche department in Normandy in north-western France.

The canton of Agon-Coutainville is an administrative division of the Manche department, northwestern France. It was created at the French canton reorganisation which came into effect in March 2015. Its seat is in Agon-Coutainville.

Hérenguerville is a former commune in the Manche department in Normandy in north-western France. On 1 January 2019, it was merged into the commune Quettreville-sur-Sienne.

Blainville-sur-Mer (French pronunciation: [blɛ̃vil syʁ mɛʁ], literally Blainville on Sea) is a commune in the Manche department in the Normandy region in northwestern France.