You're Welcome!
It's just a hobby.
As member of the board (non proffit) "Vlaanderen-Ierland FV", i'm going over IRL tourism and celtic events @ Belgium.
(Manny thanks to Danielle and her team for the supports from Brussels)
Since 1988, i had the luck to visit the Emerald isle about 25 times now:
Fly & drive / Fly & public transport / FR-IRL seabridges direct par ferry / Rail 'n sail (as Belgian traindriver, i have once a year a free ticket for Irish Rail & ferry)
It's easy to make a dubble city-trip by busses/coaches.
For who don't like to drive 'on the other side': It's not necessary to rent a car for spent a lovely week @ the Isle!:
1 single ticket Dublin Airport - Dublin City: www.dublinairport.com/to-from-the-airport/by-bus/dublin-buses
1 single ticket from Dublin City to the another city
1 single ticket from .... - Dublin Airport direct www.dublinairport.com/to-from-the-airport/by-bus/national-coach-services
(or you go first to the another city and travelling back via Dublin-City, or you can preferred 2 other city's direct and makes the link )
The Dublin Airport Bus station is @ the front of the old T1 terminal (walk between block's A & B)
https://www.dublinairport.com/at-the-airport/facilities/maps
May the road rise to meet you!
Jan