3 Days to tour in Ireland, any suggestions?

Ok, I’m traveling to Ireland for three days (we fly out on the fourth day) and I was wondering if anyone had some pointers? I was thinking a day in Dublin, a day in Cork and a day in Killarney, maybe traveling by bus or by train. Or should we head north to check out Northern Ireland? And any suggestions on what to see in the cities?
Ok, I’m really into cool landscapes and old architecture, not so much the modern stuff.

How long should I plan to tour Newgrange & Knowth in Ireland.?

My family (10 people) is taking a trip to Ireland for 4 or 5 nights. Can you recommend a tour company?

We are not interested in typical tourist sites like Blarney Castle. Killarney and the Ring of Kerry might even be a bit too touristy for us, but we are open on this. We are interested in seeing Dingle, the Cliffs of Moher, the Burren, and/or similar sites.

How many college student tours of Ireland are there?

I am trying to plan a trip to Ireland this Summer and would like to go on a tour that includes college age led tours. Tenon Tours is one option I have found, but are there others?
I am trying to go as a college graduate after getting my bachelors. I’m not trying to go there for university studies. I hope that clears that up for you.

How much should a tour guide in Ireland be tipped?

I’m going on a walking tour of Ireland next year. What is the best month to go?

Boyfriend and i meeting in ireland on mid tour from afghanistan?

me and my boyfriend are meeting in ireland for his mid-tour from Afghanistan. we are meeting in shannon but we don’t knows where to stay or what there is to do. we like night life, nature, and history. any ideas?

Does anyone know of a good tour package to Scotland and Ireland?

We’d like a trip, affordable, of about 10 days that will let us see the best of the two countries – not just all the touristy places.

where do westlife stay when on tour in ireland?

do you know what hotel westlife stay in when they are on tour in ireland

boyfriend and i meeting in ireland on mid tour from afganistan.?

me and my boyfriend are meeting in ireland for his midtour from afganistan. we are meeting in shannon but we don’t knows where to stay or what there is to do. we like night life, nature, and history. any ideas?