Rent A Car
There's probably no need to rent a car if you're only going to Dublin for a few days. The city's public transportation system is simple to use and dependable. However, if you want to see the entire nation, hiring a car and going on a road trip may be worthwhile.
The public transportation infrastructure linking the country's villages and cities is less reliable. Unless you rent a car, you may have difficulty traveling to the remote regions you want to explore. Many of Ireland's country roads are winding, but they are usually one-way only, making them relatively straightforward to traverse. From the airport, you may drive all around Ireland and Northern Ireland.
The biggest benefit when you rent a car is the independence it provides. You'll be able to travel at your own pace and on your own timetable. You won't need to plan a tour with a bus operator because you can visit on your own. You are free to spend as much or as little time as you choose in a location. Drive along the winding roads where tour buses are unable to pass.