 It is likely that in the near future, a new deep-water port, Bremore Port, near Balbriggan in North Dublin will be developed to take pressure off Dublin Port, and possibly release much of its land for urban development.Stena Line previously operated four daily sailings from Dún Laoghaire Harbour to Holyhead in Wales by means of the Stena HSS, a high speed ferry service.Sailing time was generally around 90 mins.