Îles-de-Boucherville National Park, Nature reserve in Boucherville, Canada

Îles-de-Boucherville National Park covers 8.14 km² across six islands of the Hochelaga Archipelago, including Île Sainte-Marguerite, Île Saint-Jean, Île à Pinard, Île de la Commune, Île aux Raisins and Île Grosbois. The low relief, never above nine metres, is made of marine clay left by the Champlain Sea; the islands are separated by the Grande Rivière and La Passe channels. The Grosbois woods, with red ash and silver maple, is the largest wooded sector.

Indigenous hunting grounds for over a thousand years, the islands transitioned to French colonial farmland during the 1600s. Eventually they were protected and designated as a natural reserve for conservation and public access.

The islands' names record their past: îles Percées in 1664, Isle Commune in the 18th century, and Boucherville Islands from 1858. Île Sainte-Marguerite was bought in 1810 by John Molson, founder of the Molson Brewery, who built a property there and died on the island in 1836.

The park is reached via exit 1 of Autoroute 25; in summer, three river shuttles link the islands to Montreal, Longueuil and Boucherville. In winter, the frozen river on the Boucherville side can be crossed on snowshoes or skis once the ice is thick enough. Motor vehicles may drive on the river, notably for ice fishing, but are barred from the islands on that side.

An unusual feature is an 18-hole golf course located on one of the islands, making this one of the few protected parks that incorporates golfing alongside conservation. This pairing shows an unconventional approach to how natural areas can be used.