The natural site of Mont-Canisy, dominating the sea from its 110 meters, offers an exceptional panorama on the Côte Fleurie. For centuries a seigniorial domain, its strategic position in the south of the Seine Bay meant that it was twice transformed into a coastal artillery position. Guided tour of approximately 2.5 hours of the historic site of the Mont Canisy batteries, to see the military works and the underground gallery.