The islands were the site of the Expo 67World's Fair. Île Notre-Dame was constructed for the exposition. The park was renamed in honour of Jean Drapeau, the late mayor of Montreal and initiator of Expo 67.
The Casino de Montréal is a casino located on the Île Notre-Dame in Montreal, Quebec. It is the largest casino in Canada, and one of the largest casinos in the world. The casino is open twenty-four hours a day, seven days a week to patrons aged 18 and older. It opened October 9, 1993.