The island and its wildlife sanctuary

Located in Châteauguay, less than 30 minutes away from Montréal, Île Saint-Bernard is home to exceptional natural resources and historical heritage ! This unique destination is made up of two sectors. The first one, called the tertre or knoll of the island, encompasses about 7% of the area, whereas the Refuge faunique Marguerite-D’Youville (wildlife sanctuary) accounts for the remaining 93%.

Pricing How to get there? / Business hours Trails map Observation checklist
House pets prohibited Bikes prohibited


Belonging to the Grey Nuns for more than two centuries, the knoll is now considered a municipal park since it was acquired by the city of Châteauguay in 2011. Access to the site is free and it is tremendously popular for its magnificent landscapes which can be admired sitting on one of the hundreds of Adirondack chairs available to visitors.

Close to a dozen buildings sit on the knoll, including several ancestral ones, offering a variety of services. You will find La Traite Bistro, the Manoir D’Youville (a 115-room hotel), a stone manor, a mill dating back to xxxx, a coffeehouse and a playhouse. There is also the organic apple orchard boasting more than 1000 trees that brings delight to families in the fall.

Refuge faunique Marguerite-D'Youville


Covering an area of 223 hectares, the refuge faunique Marguerite-D’Youville has been officially protected in perpetuity since 2010. The wildlife sanctuary’s enormous richness includes a wide variety of ecosystems, such as marshes, wetlands, fallow land and maple and oak stands. There are eight kilometres of trails much to the delight of outdoor enthusiasts, families, bird watchers and photographers. A fee is charged to access the wildlife sanctuary, which is reinvested in maintaining the site and also in upgrading facilities and services.

One of the attractions of this rich habitat is no doubt bird watching. The site is a major migratory stopover and over 230 bird species have been spotted. Many mammals roam freely, including a large number of white-tailed deer. Plant life is also plentiful and diverse and contributes to stunning scenery, which changes with every new ecosystem seen along the way.

Hikers can add to their outdoor experience by using an audio guide (french only) that provides information not only on the island’s history, but also on the wildlife and plants found throughout the site. In addition, the sanctuary’s digital rally, designed for families, is a free mobile application that is both a fun and educational way to discover the area!

Access to the Marguerite-D’Youville wildlife sanctuary, whether in summer or winter, is through the Pavillon de l’île. The site is open year round, from sunrise to sunset. Trails are available to hikers