As i recall there are tours available at the main office. As i think some of you know, i usually recommend against renting a car. HOWEVER, it is not a bad option here. Once you get on the main road driving is not bad. BTW i would use a local rental car company- not any of the big ones like Hertz.
A side trip to Waterford by car is good. The Waterford Crystal factory tour is interesting. Take the tram at Dalke to Trinity University. You can get to Guinness brewery tour and should by public transportation. Just sit and drink at the end of the tour
There is a hop on hop off bus in Dublin so once you leave from Dalke you can connect with it and see all the sights. I’d get a copy of Rick Steves book on Ireland and use it as a roadmap to everything. That’s what i did. BTW if i didn’t know better I’d say you were following me LOL. We certainly seem to have traveled to the same destinations.