Can cannabis be used in Parks Canada sites?
Provincial, territorial and municipal cannabis laws apply to national parks, historic sites and marine conservation areas, and Rouge National Urban Park. Parks Canada locations and some municipalities may have additional regulations and restrictions.
CAMPING LANDS IN ALL PROVINCES AND TERRITORIES
In Parks Canada campgrounds, the consumption of non-medical cannabis is limited to the campsite occupied by a visitor.
Consumption is not permitted in common areas of campgrounds (such as playgrounds, kitchens, washrooms, trails or roads).
Finally on your land is the safest place.
Information on the Parks Canada site