For those arriving Dublin airport we and heading to Tralee to start the Kerry Camino, here are a few specific instructions:

As you exit baggage claim area, look to your left platform 21 is the Dublin express shuttle which will take you to the Heuston Station (10 Euros). You will need a train tickets from Heuston to Mallow/Mallow to Tralee (30 Euros). We purchased shuttle and tickets online from the Irish Rail app.

Coffee/tea available on the train!