THE CEREMONY
There are 3 parking lots surrounding Confederation Park and lots of street parking too. The ceremony will he held in the northeast half of the park, look for signage to help find the exact location!
THE RECEPTION
There are no direct parking lots for the reception, but there are near by paid lots under London Drugs (Impark. entrance on 15th Ave) and Shoppers Drug Mart (entrance on 7th St). If there is street parking available, then that is free.
If able, I suggest you walk from your accommodations (if nearby) to the reception or hop in a taxi, Uber or Car2Go.