Not really saying that Ile Bizard is an island (even tho it is -
http://www.answers.com/topic/le-bizard-quebec : Île Bizard is an island near the Island of Montreal. It was formerly a separate municipality named Saint-Raphaël-de-l'Île-Bizard, but is now part of the city of Montreal.) just that Montreal is composed of a series of islands (archipelego).
http://www.nationmaster.com/encyclop...nd-of-Montreal :
The island of Montreal is boomerang-shaped (one end pointing roughly west, the other roughly north). It is the largest island in the Hochelaga Archipelago.
The island of Montreal is the major component of the territory of the city of Montreal, along with Ile-Bizard, Ile-Dorval, Ile Sainte-Helene, Ile Notre-Dame, Ile des Soeurs, and some 69 smaller islands. The island formerly contained 26 municipalities, all of which were merged into the City of Montreal on January 1, 2002. Some 26% of the population of Quebec live on the island.
A number of crossings connect the island to its surroundings.
having said that, I noticed myself as I drove around the city, the number of bridges that I had to cross.