Îles-de-Boucherville National Park in Quebec, Canada - map and visitor information

Research checked: 2026-10-24. Check linked official notices before travel.

Parc national des Îles-de-Boucherville protects five islands in the St. Lawrence River near Montréal, Québec. Sépaq manages this provincial national park for walking, cycling and seasonal water outings. A visit can be close to the city and still need careful arrival planning: the main entrance is reached by road, while Grosbois camping has no car access.

Highlights on the river islands

• Walk or cycle past channels, woodland and former agricultural land.
• Explore the islands' human history at the Boucher-de-Grosbois archaeological area.
• Plan a seasonal stay on Grosbois with a walking, cycling or approved water approach.

Plan the road entrance and seasonal services

Fees, hours, and seasonal access

Choose a suitable water outing

Part of the Le Héron nautical trail, between markers 6 and 10, is closed because of low water. Bicycle and boat rentals and water games are closed for the season. River and weather conditions can prevent water access to a campsite. Ask the park about the approved route and conditions before launching. For rented watercraft, children must be at least five and have a correctly fitting flotation device. Do not treat a reservation as a guarantee that a water route will operate.

Keep pets within their permitted areas

Dogs may enter only designated park areas under the published conditions. Dogs are not allowed in personal or rented boats under the park's boating rules, apart from the guide-dog provision. Check the precise rule for your animal before choosing a river outing.

Arrange access and an overnight stay separately

Arrange authorized access for children too, even though their admission is free. Buy park entry through Sépaq's admission system. Reserve seasonal camping or ready-to-camp accommodation for its specific operating dates. Grosbois is about 3.5 km from the main parking area on foot or by bicycle. Use the campground access map to plan luggage transport and arrival.

Location and access to the islands

The physical park address is 55 Île Sainte-Marguerite, Boucherville. Follow Autoroute 25 to exit 1 toward Île Charron. The park cannot be entered by bicycle through this road entrance. Check bridge-tunnel works before departure. Seasonal passenger shuttles offer other foot and bicycle approaches; confirm their schedule rather than assuming a year-round crossing.

The official visitor information separates the actual park address from its mailing address and lists access details.

Nearby parks reached by road

Parc national du Mont-Saint-Bruno is another Montérégie option, with an entrance on rang des 25 Est in Saint-Bruno-de-Montarville. Parc national d'Oka is across the Montréal region toward the north shore; choose its Route 344 entrance or seasonal beach entrance for the intended visit.

Island walks, cycling, and seasonal paddling

Start with a walking or cycling route from Île Sainte-Marguerite. In winter, marked walking routes use Sainte-Marguerite and Île de la Commune. During the boating season, channels offer a water-level view of the islands. Rental and shuttle dates need separate checks from the park's opening hours.

Visitor centers and campground services

The Sainte-Marguerite discovery center provides reception and visitor information. Restrooms serve the park. Grosbois has seasonal camping services, including toilets and showers, but its closed-season reception cannot supply an arrival or rental service. Pack for the actual operating dates.

About the Boucherville islands

An inhabited and cultivated archipelago

The park was created in 1984. Its landscape reflects a long history of human use, including agriculture that receded after protection. Archaeological interpretation on Grosbois adds context to a visit beyond the recreation routes.

River channels and woodland

The islands combine terrestrial and wetland habitats. White-tailed deer occur here, and managing their impact on vegetation is a conservation concern. Watch animals without approaching or feeding them.

Contact Îles-de-Boucherville

Call 450-928-5088 for park information. The official park page links to activities and accommodation. Sépaq reservations: 1-800-665-6527.