1600 parking spots at a 'luxury spa', that's also beside a regional commuter train, means that this 'spa' is expected well over 2000 people at peak times.
Tourists are not going to come to Toronto for a spa. 2000 people at a time is not luxury. They don't have a permit to be a night club. As a kids venue, people aren't paying luxury prices for their kids to go to a water park. WHAT IS THIS PLACE?