From the Airport head in the direction of the City Centre. After you pass the Regency Airport Hotel(left side of the road), turn left at the traffic lights. Drive the full length of Griffith Avenue and as you reach the end of the Avenue, turn right at the traffic lights. Continue on until you see a fairview park and turn right at the traffic lights. Keep the park on your left, when you come to the Bridge take the next left at traffic lights.
Continue straight and follow any signs for East Link Toll Bridge, N11 or Dun Laoghaire and cross over the toll bridge. After the toll bridge you will come to a roundabout, take the third exit- south- and the end of this road turn left. Follow signs for Dun Laoghaire or Stena Line.