North Wales Coast Line in the context of "West Coast Partnership"

The Dee Estuary (Welsh: Aber Dyfrdwy) is a large estuary by means of which the River Dee flows into Liverpool Bay. The estuary starts near Shotton after a five-mile (8 km) 'canalised' section and the river soon swells to be several miles wide forming the boundary between the Wirral Peninsula in north-west England and Flintshire in north-east Wales. The Dee Estuary's largest towns along it include Holywell, Flint, Connah's Quay, Shotton, Queensferry, Saltney Ferry, Heswall, West Kirby and Neston as well as other villages and towns alongside it. The A548 also passes along the estuary in Wales and parts of Cheshire West and Chester and Merseyside in England. The North Wales Coast Line follows the course of the Dee Estuary between Prestatyn and Chester.

Holyhead (/ˌhəʊliˈhɛd, ˌhɒliˈhɛd/; Welsh: Caergybi pronounced [kɑːɨrˈɡəbi] , "Cybi's fort") is a historic port town, and is the largest town and a community in the county of the Isle of Anglesey, Wales. Holyhead is on Holy Island, bounded by the Irish Sea to the north, and is separated from Anglesey island by the narrow Cymyran Strait, having originally been connected to Anglesey via the Four Mile Bridge.

In the mid-19th century, Lord Stanley, a local philanthropist, funded the building of a larger causeway, known locally as "the Cobb"; it now carries the A5 and the railway line. The A55 dual carriageway runs parallel to the Cobb on a modern causeway.