You can get there by motorway. You take the M7 to just south of Naas and from there you join the M9 which brings you to Waterford.
The best way by road would be to go north from Bray and join the M50 motorway. Drive until you reach the road that goes to Limerick/Cork/Waterford, which is the M7. That will bring you to Kildare. By rail or bus, you would head into Dublin and get a bus from Busaras or a train from Heuston Station.
By air -- from Dublin airport to Strasbourg or a nearby airport
All of Ireland's cities are historical in one way or another so you could say any like: Dublin Cork Belfast Limerick Derry Waterford Galway Kilkenny Armagh
its about a 2.5 to 3 hour drive depending on weather and wether or not you get stuck in traffic in dublin. Its not too bad though, mostly motorway the whole way
Grosse Pointe, Michigan is halfway between Waterford & Euclid
You could fly to one of the nearby airports and drive the rest of the way. You could also get a ferry to Wales and go by road from there.
to visit Blarney for the day you could travel by car on the M7 and M8 motorway - about 2.5 hours from the limit of Dublin or you could travel by train from Dublin Heuston to Cork and travel to Blarney from the station - about 3.5 hours
Take a flight from any of London's 4 airports. British Airways, Aer Lingus, bmi, EasyJet, Ryanair and others all fly to Dublin. Takes about an hour. Or, much less convenient but prettier, drive from London to Holyhead in Wales and take a ferry to Dublin. The drive is around 4 hours, the ferry around 3.
There are various routes from Dublin to Athlone. The best is to go by the M4 motorway to Kinnegad and from there to Athlone by the M6 motorway. Going that way it is about 77 miles. That would be about 125 kilometres.
The best way is to get the Luas from Heuston station to Connolly Station. From there get a DART to Dún Laoghaire. The Luas and DART are both rail services. It is also possible to get buses to Dún Laoghaire from the city centre, such as the 7 or 46A, and you can also drive. There are various routes, some through the city, or around the city.
Interstate 95
Post codes are not used in the Republic of Ireland. In Dublin, Appian Way is in what is known as Dublin 4. To write to Appian Way, you would put the name of the person and the number of the street, let's say 1, and the address would be: Mr Joe Bloggs 1 Appian Way Dublin 4 Ireland.