Thomas, Ireland doesn't have one price for nationals and another price for overseas visitors. Some clubs in Ireland do, but there is nothing official about it. I don't like the idea of it because it is basically admitting that the club is gouging, charging two different golfers different rates just because they come from a different place is gouging, I don't think it's ever a good idea to treat one customer differently to another.
Interesting. Isn't there a GUI members discount scheme anymore or has its availability declined?
I recall instances of playing as a visitor with a friend who is a member of a club in Ireland and I paid full rack greenfee and he paid less as he was a member of a GUI club.
atb