jjjbr, thanks for your report. Your recounting of your (and friends) stories provides a little hiccup in my Plan B if we test positive in NYC. I was under impression that you just need to quarantine for five days and have a negative test. Therefore, my plan B was to drive/fly/ferry to Halifax and meet the ship six days after positive test; test negative; and get on the ship. Since testing is not required to get into Canada it wouldn't matter that we tested positive in NYC. Now, that ten day quarantine causes a bit of a wrinkle as if we tested positive in Halifax we couldn't make it to Reykjavik in time to join the ship. Time for a new Plan B.
Again, thanks for your report.
Marc