The Tours & Travel Savings I recommend in Ireland.

DUBLIN

If traveling in Dublin during high season or for 2 days or more I recommend the Dublin Pass to save both money and time. Includes entry to over 30 of Dublin's most popular attractions, 24 hour Hop on Hop off bus and transfer from the airport to Dublin city centre.
More information on the Dublin Pass:
Should you buy a Dublin Pass? + Best Dublin Pass sites with Kids

Dublin's Highlights & Hidden Corners Walking Tour is a fabulous 2 hour tour that will educate you on some of the city's well known sites and introduce you to places you've not heard of. Organized by Dublin historian Pat Liddy, this is one of the best tours I have experienced in Dublin.

Make time for tea & touring! Vintage Tea Trips offers a relaxing tour of the city aboard a vintage double-decker bus. Truly a tasty and unique experience!

The Viking Splash Duck Boat tour of Dublin is a fun way to get an overview of the city. Put on your Viking helmet and growl at the people you pass as you view Dublin from the amphibious vehicle. Great activity with kids (or for those who like goofy fun).

More Dublin city tours

Kilkenny

Plan a full day in Kilkenny and take advantage of everything the city has to offer with the Medieval Mile Pass. Purchase this pass first thing at any of the attractions and spend the day exploring! Note: I only recommend this if you are planning a full day in Kilkenny city.

More Kilkenny tours

Cork

The Jameson Experience in Midleton, Cork, is well worth your time. Not only will you learn a  bit about how whiskey is made, but you'll finish with a complimentary drink in the bar. This is also a perfect spot to grab one-of-a-kind souvenirs (including the opportunity to bottle your own whiskey!)

More Cork tours