The Air Canada Maple Leaf Lounge is only available to passengers travelling in Business Class or with proof of active membership in one of Air Canada programs.
If you are traveling within Canada, you will find the lounge at Gate 3.
If you are traveling to the United States, you will find the lounge at Gate 73.
If you are traveling to an international destination, you will find the lounge at Gate 52.
For more information, visit Air Canada website.