My brother and I will arrive in Dublin at 5:15AM in June. My other brother and our dad will arrive in Dublin at 10:15AM on the same day. So we plan to store our luggage in a storage locker and then set off to explore for a few hours before we head back to the airport to pick up the rest of our gang.
What shall we do to entertain ourselves for those few hours early on a Monday morning? Any suggestions?