The Atlantic Provinces have had a 2 week quarantine if you are required to travel between provinces (Tough to fly the crew out only and then pay them to sit around for 14 days in isolation...). Starting July 3 there will be an "Atlantic Bubble" so travel between the 4 provinces on the East Coast can happen without a quarantine period upon arrival, but for now it sounds like visitors from the rest of the country will still be subject to the 14 day quarantine.
As for the rest of Canada, there was no consistent plan. Ontario and QC have been much looser, while the west was a bit tighter at least at the beginning. All are still strongly discouraging non-essential travel. Things have calmed down considerably in the last month or so here, so summer should be a bit more "normal". Huge hit on an already short golf season in this part of the world! With a weak CAD visits to the Great White North should have been trending up...