Air Canada Earn Your Wings promotions reruns in 2015 and is valid for flights booked and flown between April 20 and July 12, 2015.
Air Canada Altitude members can register for this offer and earn “wings” (bonus miles) for certain activities and those in the top 20 earn an additional 500,000 bonus miles at the end of promotional period.
You can access this offer on Air Canada’s website here.
Here’s an example of wings/miles that you earn:
This promotion is only open for Air Canada Altitude members. It doesn’t pay anything to sign up for the offer and collect the bonus miles.