Here is a list of places open and closed during the Canadian long weekend on Monday, July 1, 2024:

Government places:

Closed:
Federal government departments
Provincial government offices
Post offices
libraries
schools
Retail locations:

Closed:
Many department stores (there are some exceptions)
shopping center
Grocery stores (there are some exceptions)
Transportation:

Holiday schedule:
TTC
GO Transit
VIA Rail
Air Canada
WestJet
Attractions:

Open:
Many tourist attractions
National and provincial parks
Pools and beaches
Historical places
events:

Many events and festivals take place during the Canadian long weekend. For a complete list of events, please visit the Tourism Canada website.
Points to remember:

Business hours may vary during the Canadian long weekend. It is recommended that you visit the website or call the business or attraction of your choice before going.
Many places will be busier than usual on Monday, July 1, 2024. If you're looking to avoid the crowds, you may want to avoid visiting on this day.
If you're driving over the Canadian long weekend, watch out for drunk drivers and traffic.
news source