Mercier Bridge (towards Châteauguay) to the entrance to the City of Châteauguay. Cross the city on Saint-Jean-Baptiste Boulevard and turn right on René-Lévesque Boulevard. Junction A-30 O. - QC. 132 O. Direction Léry. At the 4 traffic light, take the slip road on the right Chemin Saint-Bernard, until the obligatory stop. Turn left on Notre-Dame Nord. Follow the instructions for the Pavillon de l'île / île Saint-Bernard.