What makes Bonaventure Island Fortress and the coastal park near Percé famous?

Bonaventure Island Fortress and the coastal park near Percé are famous for being home to some 200,000 breeding seabirds of 11 species, making it the largest migratory bird sanctuary in North America. The area also offers scuba diving, cruises around the rock and other coastal features, kayaking, and hiking the park's clifftops, fields, and evergreen forests.