I want to fly into Dublin and stay a few daus in the city and then travel to a few of the smaller cities. What's available for public transportation between cities?
Ireland has trains and buses. It is a bit more challenging to travel to some destinations, but it can be done. Perhaps you can tell us where you want to go and we can give more specific answers.
https://www.seat61.com/train-travel-in-ireland.htm
https://www.irishrail.ie/en-ie/
https://www.transportforireland.ie/
https://www.ireland.com/en-us/help-and-advice/practical-information/public-transport/
Also check out:
You can meet lots of really interesting people on the intercity bus!
Thanks for the great suggestions! I'm just not going to rent a car in Ireland.