The Cotswold Water Park is the United Kingdom's largest marl lake system, straddling the Wiltshire–Gloucestershire border, northwest of Cricklade and south of Cirencester. There are 180 lakes, spread over 42 square miles (110 km2).
The Severn Estuary is the estuary of the River Severn in the south-west of Great Britain, flowing into the Bristol Channel between England and South Wales. Its high tidal range, approximately 50 feet (15 m), means that it has been at the centre of discussions in the UK regarding renewable energy.
Coombe Hill Canal lies in the Vale of Gloucester, south west England, north of Leigh and runs west 2.75 miles (4.43 km) from Coombe Hill Basin to the River Severn near Wainlode Hill. It opened in 1796 and closed 80 years later in 1876, after the only lock was damaged by flooding. The Gloucestershire Wildlife Trust purchased the Coombe Hill Canal nature reserve in 1985 and the area is managed by the trust. Adjacent to the Coombe Hill Canal is a large area of wet meadowland situated midway between Gloucester and Tewkesbury to the west of the A38, which was purchased by the trust in 1999. There is a north and a south meadow. This land and the Canal itself often flood in winter, which attracts hundreds of wildfowl.
Llyn Alaw is a man-made reservoir on Anglesey, North Wales managed by Dŵr Cymru / Welsh Water. It is a shallow lake and was built in 1966. It is a Site of Special Scientific Interest and a destination for over-wintering birds.
Eccup Reservoir is a reservoir in Alwoodley, a suburb of Leeds, West Yorkshire, England, near the village of Eccup. It was first constructed in 1843, and expanded to its present size in 1897. The open water area is 91 hectares, making it largest area of water in West Yorkshire. It receives water from several smaller reservoirs and from the River Ouse. The reservoir is owned by Yorkshire Water.
West Water Reservoir is an artificial reservoir in the Pentland Hills, Scottish Borders, 3 kilometres (1.9 mi) west of West Linton, and 26 kilometres (16 mi) south west of Edinburgh. It is a drinking water reservoir for Edinburgh and the Lothians and is located 320 metres (1,050 ft) above sea level. It is an important site for wildfowl and is designated as a SSSI and a Ramsar site.
Tees and Hartlepool Foreshore and Wetlands SSSI is a 255.62-hectare (631.7-acre) biological Site of Special Scientific Interest in County Durham, England notified in 1997.
Brandon Marsh is a Site of Special Scientific Interest (SSSI) and nature reserve in Warwickshire, England. It is situated adjacent to the River Avon, near the village of Brandon, a few miles east of Coventry.
Sevenoaks Gravel Pits is a 73.7-hectare (182-acre) biological Site of Special Scientific Interest on the northern outskirts of Sevenoaks in Kent. It is managed by Kent Wildlife Trust as the Sevenoaks Wildlife Reserve and Jeffery Harrison Visitor Centre.
Ashleworth Ham is a 104.73-hectare (258.8-acre) biological Site of Special Scientific Interest. It is a large area of grassland on the Severn floodplain, north of Ashleworth in Gloucestershire, England. It is registered as a Site of Special Scientific Interest and was notified in 1974 and renotified in 1985. Ashleworth Ham received this designation because it is one of three sites in the Severn Vale where migratory waterfowl winter.
Croxall Lakes is a nature reserve located between the villages of Croxall and Alrewas, Staffordshire, in the United Kingdom. The nature reserve comprises two lakes and grassland between them. The lakes were formed through the quarrying of sand and gravel deposits, these excavations subsequently flooded and were then restored to create the nature reserve. The site is managed by Staffordshire Wildlife Trust and owned by the National Forest Company. The reserve is an important stop off point for a wide variety of migrating birds due to its location at the meeting point of three rivers, the Trent, Tame and Mease.
Purton is a village on the east bank of the River Severn, 3 miles north of Berkeley, in Gloucestershire, England. The village is in the civil parish of Hinton. It lies opposite the hamlet of Purton on the west bank of the river.
The Idle Valley Nature Reserve, also known as Lound Gravel Pits or Sutton and Lound Gravel Pits, is a wetland Site of Special Scientific Interest (SSSI) situated north-west of the town of Retford in the Bassetlaw district of north Nottinghamshire. The nature reserve is situated along the western bank of the River Idle and east of the villages of Sutton cum Lound and Lound. The nature reserve is managed by the Nottinghamshire Wildlife Trust.
Mid Colne Valley is a 132 hectare biological Site of Special Scientific Interest in Harefield in the London Borough of Hillingdon and Denham in South Buckinghamshire. Its main importance lies in its extensive diversity of birdlife in lakes in former gravel pits.
Daneway Banks is a 17-hectare (42-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1954 and renotified in 1983. It lies half a mile west of Sapperton and is part of a group of wildlife sites in the Frome Valley that includes Siccaridge Wood and Sapperton Canal reserves. The site is in the Cotswold Area of Outstanding Natural Beauty.
Old River Severn, Upper Lode is a 3.72-hectare (9.2-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1985. It is a cross county border site between Gloucestershire and Herefordshire and Worcestershire.
Upham Meadow and Summer Leasow is a 104.0-hectare (257-acre) biological Site of Special Scientific Interest on the border between Gloucestershire and Herefordshire & Worcestershire, at Twyning and near Bredon, notified in 1991.
Heath Lake is a 6-hectare (15-acre) biological Site of Special Scientific Interest (SSSI) in Berkshire. The SSSI is part of the 22.3-hectare (55-acre) Heathlake Local Nature Reserve, which is owned and managed by Wokingham District Council.
Wraysbury No 1 Gravel Pit is a 58.0-hectare (143-acre) biological Site of Special Scientific Interest in Wraysbury in Berkshire. It is part of South West London Waterbodies Ramsar site, and Special Protection Area. The lake has a surface area of 39.6 hectares(97.85 acres). The site has an area of 58.0-hectare (143-acre) and the lake 39.6-hectare (98-acre). The pit was excavated in the 1920s and 1930s with gravel being removed from the site. Over the years plants and wildlife have colonised the area and it is now mature.
Hay-a-Park Gravel Pit is a Site of Special Scientific Interest, or SSSI, adjacent to the east side of the town of Knaresborough, North Yorkshire, England. Having been a disused and flooded quarry since the 1970s, it now consists of the large Hay-a-Park Lake and three smaller ponds, besides associated reedbeds, scrub, woodland and grassland. It was designated as a SSSI in 1995 because it supports a number of wintering birds, including a large flock of goosander. This site is "one of the most northerly inland breeding populations of reed warbler in Britain." Hay-a-Park was once part of a royal park, an early landowner being Edward II.
