Originally Posted by john11111111111

Since the country I am in is still on the red list in the UK but not in Ireland, I am planning to fly to Dublin. I would then plan to stay 10 days in Dublin in a hotel before either catching the Holyhead ferry or getting the train to Belfast and flying over to Bristol.
I have been double vaccinated with AstraZeneca although whether the UK or Ireland recognizes the vaccine certificate I have, I don't know.
I was wondering if anyone knows how closely they check documents in Dublin on arrival (eg proof of hotel reservation, onward ticket etc.), and if I had to go over to the UK before the full 10 days was up for unavoidable reasons, such as family illness, could I just go, or would I have to do a 10-day hotel quarantine in Holyhead? Or could I even be stopped from buying a ticket by the ferry company?