Well hidden on Île aux Noix, the elaborate design of Fort Lennox National Historic Site and its important role in Canada's defence against invaders from the south make it the star of the Richelieu. Plan on spending at least half a day to fully appreciate the immensity of the site, the rich landscape and the fascinating history of the fortification, enhanced by the storytelling skills and enthusiasm of Parks Canada's animator guides. The fort is undergoing major renovations and will open gradually over the next two years. Follow the updates by visiting the website.