Liverpool Bay in the context of "Landsat"

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.

The Wirral Peninsula (/ˈwɪrəl/), known locally as the Wirral, is a peninsula in North West England. The roughly rectangular peninsula is about 15 miles (24 km) long and 7 miles (11 km) wide, and is bounded by the Dee Estuary to the west, the Mersey Estuary to the east and Liverpool Bay to the north.

Historically, the Wirral was wholly in Cheshire; in the Domesday Book, its border with the rest of the county was placed at "two arrow falls from Chester city walls". However, since the Local Government Act 1972, only the southern third has been in Cheshire, with almost all the rest lying in the Metropolitan Borough of Wirral, Merseyside. An area of saltmarsh and reclaimed land adjoining the south-west of the peninsula lies in the Welsh county of Flintshire.