Île des Soeurs (English: Nuns' Island) is an island that forms a part of the city of Montreal, Quebec. It forms a part of the borough of Verdun. The Champlain Bridge connects Île des Sœurs with the south shore of Quebec, as well as Montreal proper via Autoroute 15. The much smaller Clément Bridge connects Île des Sœurs with the Autoroute Bonaventure.