The Jacques Cartier Bridge is a steel truss cantilever bridge crossing the Saint Lawrence River from Montreal Island, Montreal, Quebec, to the south shore at Longueuil, Quebec, Canada. The bridge crosses Saint Helen's Island in the centre of the river, where offramps allow access to the Parc Jean-Drapeau and La Ronde amusement park.

The Island of Montreal is a large island in southwestern Quebec, Canada, that is the site of a number of municipalities, including most of the city of Montreal, and is the most populous island in Canada. It is the main island of the Hochelaga Archipelago at the confluence of the Saint Lawrence and Ottawa rivers.