File:Beobachtunsbunker Batterie Longues sur mer.JPG - Wikimedia Commons
Site 5: German Battery of Longues sur Mer is one of the most iconic gun batteries of the Atlantic Wall. The site included 4 naval guns of 150 mm long range,
Longues-sur-Mer German artillery battery LONGUES-SUR-MER : Normandy Tourism
Longues-sur-Mer German artillery battery LONGUES-SUR-MER : Normandy Tourism
Normandy – Longues sur Mer Battery | War Traveller