Motor vehicle access to all national parks, historic sites and marine conservation areas will be temporarily suspended across Canada from midnight.
Parks Canada said the decision was made as part of efforts to suppress the COVID-19 virus.
The vehicle ban will remain in place until further notice, the agency said.
It explained: “This means that all parking lots, vehicle services, trails, washrooms, day use facilities, showers, visitor centres, and all camping facilities, including oTENTiks, yurts and backcountry camping, are closed until further notice.
“Highways and roadways which pass through Parks Canada places will remain open.”
Parks Canada will also be limiting its activities to “basic critical operations,” it said.