Portbury Ashlands which is now known as Portbury Wharf Nature Reserve is a nature reserve between Portishead and the Royal Portbury Dock in Somerset, England. It was formed from the redevelopment of the area of Portishead formerly occupied by two power stations. To the east of the harbour, an area known as "the Ashlands" was used for over 50 years to get rid of power station waste which was dumped into lagoons on the site.

Portishead is a town and civil parish in the North Somerset unitary authority area, in the county of Somerset, England. With a population of 26,366 at the 2021 Census, the town is located on the Severn Estuary opposite Cardiff and Newport in Wales. The town is 8 miles (13 km) to the west of Bristol and 18 miles northeast of Weston-super-Mare.