I'm sailing on Friday and lucky that I double check. I was confused by how they say unvaccinated kids can take PCR tests up to 3 days prior to boarding so my whole family went to get tested 3 days prior - only to find out now that vaccinated guests have to get tested 48 hrs prior to boarding.
I still have 1 more day left to fix this but if I had not give this one more thought we would probably be denied boarding? I wonder how strict they are with it!