River Parrett in the context of "Hinkley Point"

The Somerset Levels are a coastal plain and wetland area of Somerset, England, running south from the Mendips to the Blackdown Hills.

The Somerset Levels have an area of about 160,000 acres (650 km) and are bisected by the Polden Hills; the areas to the south are drained by the River Parrett, and the areas to the north by the rivers Axe and Brue. The Mendip Hills separate the Somerset Levels from the North Somerset Levels. The Somerset Levels consist of marine clay "levels" along the coast and inland peat-based "moors"; agriculturally, about 70 per cent is used as grassland and the rest is arable. Willow and teazel are grown commercially and peat is extracted.

The River Yeo, also known as the River Ivel, is a tributary of the River Parrett in north Dorset and south Somerset, England.

The river's names derive from the Celtic river-name gifl 'forked river'. The name Yeo appears to have been influenced by Old English ēa 'river'.

Castle Cary (/ˌkɑːsəl ˈkɛəri/) is a market town and civil parish in south Somerset, England, 5 miles (8 km) north west of Wincanton and 8 miles (12.9 km) south of Shepton Mallet, at the foot of Lodge Hill and on the River Cary, a tributary of the Parrett.

The River Axe is a 22-mile (35 km) long river in the counties of Dorset, Somerset and Devon, in the south-west of England. It rises in Dorset and flows south to Lyme Bay which it enters through the Axe Estuary in Devon. It is a shallow, non-navigable river, although its mouth at Seaton has some boating activity. The name Axe derives from a Common Brittonic word meaning "abounding in fish", and is cognate with pysg (a variant of pysgod), the Welsh word for fish.

The River Axe rises in several streams to the south of Chedington in Dorset, close to the source of the River Parrett that flows north to the Bristol Channel. The Axe then flows west through Mosterton and Seaborough before turning south and forming the county boundary between Dorset and Somerset. In this section it flows past the villages of Wayford and Winsham, and the former Forde Abbey. At a point some 3 miles (4.8 km) north of Axminster it is joined by the Blackwater River and enters the county of Devon. It is then joined by the River Kit, before passing through Axminster after which it is joined by the River Yarty and continues south by the villages of Whitford and Colyford, where it is joined by the River Coly. At this point it spreads out to form the tidal Axe Estuary. The estuary flows past the village of Axmouth, on its eastern bank, before passing through a high shingle bank to the east of the seaside town of Seaton and entering Lyme Bay on the English Channel.

Burrowbridge is a village and civil parish in Somerset, England, situated on the River Parrett and the A361 road on the edge of the Somerset Levels. It is located 5 miles (8.0 km) southeast of Bridgwater, and has a population of 508.

Bridgwater is a historic market town and civil parish in Somerset, England. The town had a population of 41,276 at the 2021 census. Bridgwater is at the edge of the Somerset Levels, in level and well-wooded country. The town lies along both sides of the River Parrett; it has been a major inland port and trading centre since the industrial revolution. Most of its industrial bases still stand today. Its larger neighbour, Taunton, is linked to Bridgwater via a canal, the M5 motorway and the Bristol–Exeter railway line.

Historically, the town had a politically radical tendency. The Battle of Sedgemoor, where the Monmouth Rebellion was finally crushed in 1685, was fought nearby. Notable buildings include the Church of St Mary and Blake Museum, which is a largely restored house in Blake Street and was the birthplace of Admiral Blake in 1598. The town has an arts centre and plays host to the annual Bridgwater Guy Fawkes Carnival.

Bridgwater Bay is on the Bristol Channel, 5 kilometres (3.1 mi) north of Bridgwater in Somerset, England at the mouth of the River Parrett and the end of the River Parrett Trail. It stretches from Minehead at the southwestern end of the bay to Brean Down in the north. The area consists of large areas of mudflats, saltmarsh, sandflats and shingle ridges, some of which are vegetated. It has been designated as a Site of Special Scientific Interest (SSSI) covering an area of 3,574.1 hectares (35.741 km; 13.800 sq mi) since 1989, and is designated as a wetland of international importance under the Ramsar Convention. The risks to wildlife are highlighted in the local Oil Spill Contingency Plan.

Several rivers, including the Parrett, Brue and Washford, drain into the bay. Man-made drainage ditches from the Somerset Levels, including the River Huntspill, also run into the bay. The mud flats provide a habitat for a wide range of flora and fauna. These include some nationally rare plants, beetles and snails. It is particularly important for overwintering waders and wildfowl, with approximately 190 species recorded including Eurasian whimbrel (Numenius phaeopus), black-tailed godwit (Limosa limosa), dunlin (Calidris alpina) and wigeon (Anas penelope). Fishing has taken place using shallow boats, known as flatners, and fixed wooden structures for hundreds of years. It was also the last site in England used for 'mudhorse fishing'. There are several small harbours along the coast.