All joking aside, Howth is a great shout. Particularly if you like seafood.
Try the deluxe seafood chowder in The Brass Monkey on the pier. It’s a meal in itself, not just a lunch.
A few good bars. I think the Abbey Tavern may be doing music again. The Dubliners used to play out there when they were starting off.
You may get music in The Waterside as well and possibly The Bloody Stream, which is the bar at the DART station.( The train station that will take you back to town)
Don’t worry about me and JH. That’s just what you Brits call banter (slagging) between us and our country cousins. Only room we need to find is a bar. We’d sort the problems of the world out.