Dublin Port Dublin Port Dublin Port () is the seaport of Dublin, Ireland, of both historical and contemporary economic importance. Approximatively two-thirds of Ireland's port traffic travels via the port, which is by far the busiest on the island of Ireland. Recently, the port and its land, mostly at the eastern end of Dublin's Northside, but also with a southern section, were valued at €25 billion – €30 billion. The modern Dublin Port is located either side of the River Liffey, out to its mouth. On the north side of the river, the main part () of the port lies at the
Newcastle, South Dublin Newcastle, South Dublin Newcastle () is a village in south-west South Dublin, Ireland. It is also a civil parish in the barony of the same name. It was the location of the castle of the barony, which in historical and official documents is described as Newcastle-Lyons. The area is still primarily rural in nature. Newcastle-Lyons is located at the junction of the R120 and the R405 regional roads. It lies approximately 3 km north of the N7 at Rathcoole, 6 km south east of Celbridge, and 9 km west of Tallaght. The village lies west of Casement Aerodrome (Baldonnell), the