Ingrebourne Valley is a local nature reserve (LNR) in Hornchurch in the London Borough of Havering. It is owned and managed by Havering Council, and has a visitor centre managed by the Essex Wildlife Trust. Most of it is in Hornchurch Country Park west of the River Ingrebourne, but there are also areas north and south of the park which are part of the LNR. It has a wide range of habitats, including woodland, grassland, the river and marshes. It is an important site for a range of species of plants, animals and birds, including great crested newts, slow worms, the harvest mouse and the water vole.
Walthamstow Marshes, is a 36.7-hectare (91-acre) biological Site of Special Scientific Interest in Walthamstow in the London Borough of Waltham Forest. It was once an area of lammas land – common land used for growing crops and grazing cattle.
Little Hallingbury is a small village and a civil parish in the Uttlesford district of Essex, England.
Freeman's Marsh is a 25.1-hectare (62-acre) biological Site of Special Scientific Interest on the northern outskirts of Hungerford in Berkshire. It is in the North Wessex Downs, which is an Area of Outstanding Natural Beauty. The site is owned by the Town and Manor of Hungerford.
Burham Marsh nature reserve is an 11 hectare tidal Reed bed on the River Medway 5 miles northwest of Maidstone. It is just east of Snodland but being on the east bank of the river it is accessed via Burham. It is part the Holborough to Wouldham Marshes Site of Special Scientific Interest.
Ingrebourne Marshes are a 74.8 hectare biological Site of Special Scientific Interest in Hornchurch in the London Borough of Havering. Ingrebourne Valley Local Nature Reserve includes a small part of the SSSI west of the River Ingrebourne. The site is managed by the Essex Wildlife Trust
Moor Park is a 6.7-hectare (17-acre) biological Site of Special Scientific Interest east of Farnham in Surrey.
Hunsdon Mead is a 34 hectare biological Site of Special Scientific Interest (SSSI) west of Harlow and east of Roydon in Essex. The site is partly in Essex and partly in Hertfordshire, and it is jointly owned and managed by the Essex Wildlife Trust and the Herts and Middlesex Wildlife Trust. The SSSI also includes part of the neighbouring Roydon Mead. The planning authorities are East Hertfordshire District Council and Epping Forest District Council. Hunsdon Mead is registered common land.
Sawbridgeworth Marsh is a 6.3-hectare (16-acre) biological Site of Special Scientific Interest (SSSI) near Sawbridgeworth in Hertfordshire, apart from a small area in the north which is in Essex. It is managed by the Essex Wildlife Trust. The planning authorities are East Hertfordshire District Council and Uttlesford District Council.
Thorley Wash or Thorley Flood Pound is a 17.3-hectare biological Site of Special Scientific Interest in Thorley, south of Bishop's Stortford in Hertfordshire. It was formerly a flood pound for the Stort Navigation, which was decommissioned in 2004 and converted to a more natural state. It was purchased by the Herts and Middlesex Wildlife Trust from the Environment Agency in 2011.
Rushy Mead is a 4.6 hectare nature reserve on the bank of the River Stort in Essex, between Sawbridgeworth and Bishop's Stortford. Until the 1950s it was the site of a pumping station for a sewage works. It is owned by Thames Water and Wimpey Homes, and managed by the Essex Wildlife Trust. The name Rushy Mead comes from an old map showing the area as riverside meadows.
Pilch Fields is an 11.1-hectare (27-acre) biological Site of Special Scientific Interest (SSSI) west of Great Horwood in Buckinghamshire. It is managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust.
Weston Turville Reservoir is a 19 hectare biological Site of Special Scientific Interest south of Weston Turville in Buckinghamshire. It is owned by the Canal & River Trust, and the open water is leased to sailing and fishing clubs while the surrounding land is managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. The site is in the Chilterns Area of Outstanding Natural Beauty.
Harlow Marsh is a 13.8 hectare Local Nature Reserve in Harlow in Essex. It is owned and managed by Harlow District Council.
West Thurrock Lagoon and Marshes is a 66.1-hectare (163-acre) biological Site of Special Scientific Interest in West Thurrock in Essex.
Holborough to Burham Marshes is a 149.8-hectare (370-acre) biological Site of Special Scientific Interest Kent. Holborough Marshes and Burham Marsh are managed by the Kent Wildlife Trust.
Preston Marshes is a 43.4-hectare (107-acre) biological Site of Special Scientific Interest east of Canterbury in Kent.
Papercourt Marshes is a 10-hectare (25-acre) nature reserve in the south-east of the borough of Woking in Surrey. It is managed by the Surrey Wildlife Trust. A roughly 50 hectares lake and associated surrounds, including the marshes totalling 20.0 hectares is designated a biological Site of Special Scientific Interest as Papercourt.
Filsham Reedbed is an 18.5-hectare (46-acre) Local Nature Reserve on the western outskirts of St Leonards-on-Sea in East Sussex. It is owned by Hastings Borough Council and managed by Sussex Wildlife Trust. It is part of Combe Haven Site of Special Scientific Interest.
