Deben Estuary SSSI is a 981.1-hectare (2,424-acre) biological Site of Special Scientific Interest (SSSI) covering the River Deben and its banks 12 kilometres from its mouth north of Felixstowe to Woodbridge in Suffolk. It is a Ramsar internationally important wetland site and a Special Protection Area under the European Union Directive on the Conservation of Wild Birds. It is also in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty. It partly overlaps two geological SSSIs, Ferry Cliff, Sutton and Ramsholt Cliff.
Adventurers' Land is a 10.1-hectare (25-acre) geological Site of Special Scientific Interest (SSSI) north of March in Cambridgeshire. It is a Geological Conservation Review site.
Mole Gap to Reigate Escarpment is a 1,016.4-hectare (2,512-acre) biological and geological Site of Special Scientific Interest west of Reigate in Surrey. It is a Geological Conservation Review site and a Special Area of Conservation. Part of it is a Nature Conservation Review site, Grade I. Two small private nature reserves in the site are managed by the Surrey Wildlife Trust, Dawcombe and Fraser Down.
River Line SSSI is a 2.2-hectare (5.4-acre) geological Site of Special Scientific Interest south of Robertsbridge in East Sussex. It is a Geological Conservation Review site.
The River Ter SSSI is a stretch of the River Ter and its banks south of Great Leighs in Essex which has been designated a geological Site of Special Scientific Interest. It is a Geological Conservation Review site.
Upware South Pit is a 1.1-hectare (2.7-acre) geological Site of Special Scientific Interest (SSSI) north of Upware in Cambridgeshire. It is a Geological Conservation Review site.
Shippea Hill SSSI is a 27.6-hectare (68-acre) geological Site of Special Scientific Interest east of Ely in Cambridgeshire, England. It is a Geological Conservation Review site.
Cranford St John SSSI is a 2.8-hectare (6.9-acre) geological Site of Special Scientific Interest in Cranford St John, east of Kettering in Northamptonshire. It is a Geological Conservation Review site.
Breckland Forest is an 18,126 hectare biological and geological Site of Special Scientific Interest in many separate areas between Swaffham in Norfolk and Bury St Edmunds in Suffolk, England. It is part of the Breckland Special Protection Area under the European Union Directive on the Conservation of Wild Birds. It contains two Geological Conservation Review sites, Beeches Pit, Icklingham and High Lodge. Barton Mills Valley is a Local Nature Reserve in the south-west corner of the site.
One Barrow Plantation is a 1.8 hectares geological Site of Special Scientific Interest (SSSI) south-west of Shepshed in Leicestershire. It is a Geological Conservation Review site. Part of the site is in the Blackbrook Reservoir biological SSSI.
Folkestone Warren is a 316.3-hectare (782-acre) biological and geological Site of Special Scientific Interest (SSSI) which runs along the coast between Folkestone and Dover in Kent. It is a Nature Conservation Review site and it contains three Geological Conservation Review sites and part of a fourth. An area of 83.6 hectares is a Local Nature Reserve,
Wateringbury SSSI is a 0.2-hectare (0.49-acre) geological Site of Special Scientific Interest in Wateringburym west of Maidstone in Kent. It is a Geological Conservation Review site.
Bawsey is a 2.6-hectare (6.4-acre) geological Site of Special Scientific Interest east of Kings' Lynn in Norfolk, England. It is a Geological Conservation Review site.
Wiggenhall St Germans SSSI is a 5.2-hectare (13-acre) geological Site of Special Scientific Interest south of King's Lynn in Norfolk, England. It is a Geological Conservation Review site.
Blackborough End Pit is a 13.2-hectare (33-acre) geological Site of Special Scientific Interest south-east of King's Lynn in Norfolk, England. It is a Geological Conservation Review site.
Barnham Cross Common is a 69.1-hectare (171-acre) biological Site of Special Scientific Interest on the southern outskirts of Thetford in Norfolk, England. It is owned by Thetford Town Council and is registered common land. It is also a Local Nature Reserve and a Nature Conservation Review site, Grade 1. It is part of the Breckland Special Area of Conservation and Special Protection Area.
East Walton and Adcock's Common is a 62.4-hectare (154-acre) biological and geological Site of Special Scientific Interest south-east of King's Lynn in Norfolk, England. It is a Geological Conservation Review site and part of Norfolk Valley Fens Special Area of Conservation
Hunstanton Cliffs is a 4.6-hectare (11-acre) biological and geological Site of Special Scientific Interest in Hunstanton in Norfolk, England. It is a Geological Conservation Review site.
Stanford Training Area SSSI is part of the British Army Stanford Training Area. It is a 4,678-hectare (11,560-acre) biological and geological Site of Special Scientific Interest north of Thetford in Norfolk, England. It is a Nature Conservation Review site and part of it is a Geological Conservation Review site. It is also part of the Breckland Special Area of Conservation and Special Protection Area.
Wretton SSSI is a 20.6-hectare (51-acre) geological Site of Special Scientific Interest north-east of Downham Market in Norfolk, England. It is a Geological Conservation Review site.
