Fleet Pond is a 48.3-hectare (119-acre) biological Site of Special Scientific Interest in Fleet in Hampshire. It is also a Local Nature Reserve.
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 Sussex Wildlife Trust (SWT) is a conservation charity which aims to protect natural life in Sussex. It was founded in 1961 and is one of 46 wildlife trusts across the UK and the Isle of Man and Alderney. As of 2019, it has 33,000 members and manages 2,000 hectares of land for nature. It is a registered charity and in the year to 31 March 2019 it had an income of £5.7 million and expenditure of £4 million, resulting in net income of £1.7 million.
The Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust (BBOWT), is a wildlife trust covering the counties of Berkshire, Buckinghamshire and Oxfordshire in England.
Thatcham Reed Beds is a 67.4-hectare (167-acre) biological Site of Special Scientific Interest east of Newbury in Berkshire. It is part of the Kennet & Lambourn Floodplain Special Area of Conservation and an area of 14 hectares is a Local Nature Reserve. An area of 35 hectares is managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust.
Combe Bottom is a 42.1-hectare (104-acre) biological Site of Special Scientific Interest north of Shere in Surrey. It is designated a Local Nature Reserve called Shere Woodlands, and is managed by the Surrey Wildlife Trust.
Combe Haven is a 153-hectare (380-acre) biological Site of Special Scientific Interest between Hastings and Bexhill-on-Sea in East Sussex. An area of 18.5 acres is Filsham Reedbed Local Nature Reserve, which is managed by the Sussex Wildlife Trust
Marline Valley Woods is a 55.1-hectare (136-acre) biological Site of Special Scientific Interest on the western outskirts of Hastings in East Sussex. An area of 40.3 hectares is a Local Nature Reserve owned by Hastings Borough Council and managed by the Sussex Wildlife Trust.
Seaford to Beachy Head is a 1,108.7-hectare (2,740-acre) biological and geological Site of Special Scientific Interest which stretches from Seaford to Eastbourne in East Sussex. It has several Geological Conservation Review sites. Part of it is a Nature Conservation Review site, Grade I. An area of 150 hectares is a Local Nature Reserve managed by the Sussex Wildlife Trust.
Rye Harbour LNR is a 325.4-hectare (804-acre) local nature reserve in Rye in East Sussex. The site is part of the 465-hectare (1,150-acre) nature reserve managed by the Sussex Wildlife Trust. It is also part of Dungeness, Romney Marsh and Rye Bay Ramsar site, Special Protection Area and Site of Special Scientific Interest and Dungeness Special Area of Conservation.
Seaford Head is a 150.2-hectare (371-acre) Local Nature Reserve east of Seaford in East Sussex. It is part of Seaford to Beachy Head Site of Special Scientific Interest An area of 83 hectares is owned by Seaford Town Council and managed by the Sussex Wildlife Trust. The rest is divided between Seven Sisters Country Park, which is owned and managed by East Sussex County Council, and an area owned by the National Trust.
Eames Farm is a 132.5-hectare (327-acre) Local Nature Reserve on Thorney Island in West Sussex. It is owned by the Chichester Harbour Conservancy, West Sussex County Council and the Ministry of Defence and managed by the Chichester Harbour Conservancy. It is part of Chichester and Langstone Harbours Ramsar site and Special Protection Area and Chichester Harbour Site of Special Scientific Interest.
Burton Park SSSI is a 57.7-hectare (143-acre) biological Site of Special Scientific Interest west of Pulborough in West Sussex. A larger area of 63 hectares, including Chingford Pond to the west, is designated a Local Nature Reserve called Burton and Chingford Ponds, which is managed by the Sussex Wildlife Trust and West Sussex County Council. The site is adjacent to Burton Park, a Grade I listed building.
Marehill Quarry is a 1.1-hectare (2.7-acre) geological Site of Special Scientific Interest east of Pulborough in West Sussex. It is owned and managed by the Sussex Wildlife Trust and is a Geological Conservation Review site.
