Hello-
Last year I flew into Glasgow from the US, and then from Inverness to Dublin to US.
Of course, I went through customs when landing in Dublin. I am planning my next trip-
flying again into Glasgow; I am thinking about flying into Belfast and then taking train to Dublin as my final destination before heading back to US.
Since Northern Ireland is part of the UK, do I have to go through customs in Belfast as a non EU resident? I'm just curious if any issues when trying to "leave" Dublin, as there would be record of entering the country. As far as I know, there are no border checkpoints between Northern Ireland and Ireland?
I hope that this isn't a stupid question!