We flew up to Montreal this past Tuesday for a 5 day visit (our original hometown) and it was a breeze getting through customs, etc. We arrived to our downtown hotel and then......boom! I received an email advising I was selected for a random PCR test and had to go back to the airport the next day to have it done (had to be completed by that evening). It would have been nice and saved lots of time and aggravation (so much traffic and construction to and from downtown and airport) had I been advised WHILE I WAS AT the airport. We had pre-advised we were fully vaccinated and double boosted but the Canadian Government still does these random tests, which take only a couple minutes to do then results back within 24 hours. A cautionary tale, perhaps, for those traveling to and through Canada.