Getting To Ireland should be your first priority when planning your vacation or holiday in Ireland – Unless you are travelling from the UK itself or mainland Europe, air travel is the only viable means to use.
Ireland’s three carriers offer a number of possibilities, with Aer Lingus currently operating the only long-haul flights. The main main airlines are

•Aer Lingus
•Ryanair
•Aer Arann (mainly in-country and UK flights)

A rental car is the best way to explore Ireland if you are leaving the Capital of Dublin. It not only provides you with the most convenient mode to get to the big attractions, it also enables you to plan  your own route. Note that you will be driving on the left side of the road in Ireland

In Dublin public transport is more than adequate and will meet the demands of most visitors. As it is also considerably quicker and cheaper than using a car, it really should be your first choice. Outside the Dublin area, however, trains and buses can be few and perhaps unreliable.
However you may also wish to experience Ireland at your own pace, hence both cycling and walking holidays are indeed very popular. You can either follow your own plan or join an organized walking or cyling arranged holiday