We are a group of 11 traveling in two cars to Niagara Falls, ON on 6/16-18 and will be staying at The Tower hotel for 2 nights which is 1-2 blocks up the street from the Fallsview Casino. The Tower charges $20 (CAD) per vehicle x 2 cars x 2 days = $80 CAD for two cars to sit in a parking lot. We have better ways to spend our money while at Niagara. There have been posts about obtaining a $20 Players Advantage Card and ensuring action on the card in order to get free parking. Will I need to show activity on both cards on both days or just on the day we plan to leave? Also is there a minimum amount of "play" time required in order to receive free parking? Thanks in advance for any/all replies!