More like over 13 million, according to their tourism site.
What is the emergency, exactly? More traffic and no parking spots for all those cars?
The article doesn’t mention anything alarming, and since tourism in the region has been down quite a bit since the pandemic, this could be a major boom for local business.
A state of emergency would be more appropriate if that many people were expected in a conservation area or provincial park. But not in an area designed for events and tourists.