3 Nights (Saturday-Monday, heading to Dublin on Tuesday). Trying to figure out if/how to split them between Cork, Killarney, and Galway.

First off, I will be taking the train between cities and will not have a car. Besides my flights in and my hotels in Dublin later in the week, nothing is set in stone. I had a plan (before doing any real research) of landing in Dublin, taking the train to Galway on Saturday, then heading to Killarney on Sunday, then Cork on Monday. But now having actually started to look at how long things take I am not sure if that is good plan.

First off the Number 1 thing I really want to do in these cities is just walk around them, taking in the sights and sounds, seeing old buildings, and hopping from pub to pub but I feel like I would most likely get equal enjoyment from doing that in any of the three cities so I am not sure a night in each is necessary (or logistically possible).

Here is what interested me about each city and why I want to visit:

Galway - I partly think the only reason I originally wanted to go to Galway cause of its proximity to the Cliffs of Moher and Aran Islands (though I doubt I would make it out there). I see a lot of day trips, which sound great, but if I did them that would be the whole day and I would have to spend another night in Galway. The Aran Islands are something that I know I would like but haven't researched at all yet. I am also interested in Galway Cathedral and seeing the Latin Quarter.

Killarney - In Killarney the main thing would be the National Park and the general scenic views out in the country around the city. I live in a rural area so I just like that sort of setting. I have seen some buildings, Muckross House and Ross Castle that also seem interesting. Besides that just walking down Main Street would probably be a great day for me.

Cork - Main things of interest would be going to Cobh down by the water to see the views and buildings in that area. A trip to Blarney Castle. Maybe head to Kinsale (depending on transportation options). Seems like I could do a few of those things even right as I get in from Dublin, or on Tuesday morning before I head to Dublin.

EDIT FOR CLARITY: know I can’t do all that in 3 days and I’m not going to try to. I just listed everything I’m interested in so ppl with experience can suggest would I should actually do. Like “Your best bet would just be 3 nights in Cork and because…”

So what would you all suggest I attempt to do during these days? Where should I spend my time? Any and all advice and information is greatly appreciated!