Anglesey Sqn Search and Rescue Helicopters, both units providing employment for about 500 civilians. RAF Valley is now the headquarters of 22 Sqn Search and Rescue. There is a wide range of smaller industries, mostly located in industrial and business parks, especially at Llangefni and Gaerwen. These include an abattoir and fine chemical manufacturing, as well as factories for timber production, aluminium smelting, fish farming and food processing. The island is also on one of the major routes from Britain to Ireland, via ferries from Holyhead, off the west of Anglesey on Holy Island, serving Dún Laoghaire and Dublin Port. Much
Port of Holyhead all sheltered by the Holyhead Breakwater which, at 2.7 kilometres, is the longest in the UK. There is access to the port via a building shared with Holyhead railway station, which is served by the North Wales Coast Line to and London Euston. The walk between trains and ferry check in is less than two minutes, but longer from the remote platform 1, used by Virgin Trains West Coast services. The port is accessible to motor vehicles via both the A5 and the A55 roads. Pedestrian access from Holyhead town centre is via the Celtic Gateway, a bridge linking town