View from inside Longues-sur-Mer gun battery. Longues-sur-Mer, France, September 2017 (Photo: Sarah Sundin) POSTED: Thursday, February 8, 2018 by Sarah Sundin View from inside Longues-sur-Mer gun battery. Longues-sur-Mer, France, September 2017 (Photo: Sarah Sundin) Leave a Comment Click here to cancel reply. Name (required) Mail (required) (will not be published) Website