Thanks everyone for your input. What I don't understand is why I can't get a definitive yes-or-no answer for whether a pre-embarkation Covid test is required at Piraeus. I know Oceania doesn't require, but that apparently is not the issue. I've looked at numerous websites, for the Port Authority and as stated above, see that a test is NOT required for cruisers "passing through" but that's not my question.
Hasn't anyone embarked in Athens in the last month or two? I'm asking because (1) I have a nasal problem that is greatly exacerbated by the test, and (2) am afraid of a false positive.
Thanks again (12 days until Riviera!)
Jan & John