Seine-Maritime Department nature and coastline outing - Organized by Aquacaux and the City of Le Havre.
A military structure erected at the end of the 19th century on the heights of Cap de la Hève, the building was used to monitor the estuary after the dismantling of Le Havre's fortifications. During the Second World War, the complex became part of the German Atlantic Wall. A two-voice tour offers a historical and natural interpretation of this eminently strategic site.