A site of special scientific interest (SSSI) in Great Britain, or an area of special scientific interest (ASSI) in the Isle of Man and Northern Ireland, is a conservation designation denoting a protected area in the United Kingdom and Isle of Man. SSSI/ASSIs are the basic building block of site-based nature conservation legislation and most other legal nature/geological conservation designations in the United Kingdom are based upon them, including national nature reserves, Ramsar sites, Special Protection Areas, and Special Areas of Conservation. The acronym "SSSI" is often pronounced "triple-S I".
Walton-on-the-Naze is a seaside town on the North Sea coast. It is part of the parish of Frinton and Walton, in the Tendring district in Essex, England. The town is located north of Clacton and south of the port of Harwich; Frinton-on-Sea lies to the south of the town. The town has a population of 12,054, according to the 2011 census; in 1931, the parish had a population of 3,071. The town attracts many visitors; The Naze and the pier are the main attractions.
The Essex Wildlife Trust (EWT) is one of 46 wildlife trusts which cover the United Kingdom. The EWT was founded in 1959, and it describes itself as Essex's leading conservation charity, which aims to protect wildlife for the future and the people of the county. As of January 2017, it has over 34,000 members and runs 87 nature reserves, 2 nature parks and 11 visitor centres.
The Red Crag Formation is a geological formation in England. It outcrops in south-eastern Suffolk and north-eastern Essex. The name derives from its iron-stained reddish colour and crag which is an East Anglian word for shells. It is part of the Crag Group, a series of notably marine strata which belong to a period when Britain was connected to continental Europe by the Weald–Artois Anticline, and the area in which the Crag Group was deposited was a tidally dominated marine bay. This bay would have been subjected to enlargement and contraction brought about by transgressions and regressions driven by the 40,000-year Milankovitch cycles.
Wansunt Pit is a 1.9-hectare (4.7-acre) geological Site of Special Scientific Interest in Dartford Heath between Crayford in the London Borough of Bexley and Dartford in Kent. It is also a Geological Conservation Review site. It is important geologically because it exposes the Dartford Heath Gravel, and the relationship of this exposure to the Swanscombe sequence and the Thames Terraces is a controversial issue in Thames Pleistocene studies. The site is part of Braeburn Park, a nature reserve managed by the London Wildlife Trust.
Benfleet and Southend Marshes is an 8.1-square-mile (21 km2) Site of Special Scientific Interest (SSSI) in Essex. It consists of mudflats, salt marshes, scrub and wild grassland, and includes the Southend-on-Sea foreshore. It has been so recognised for its biological value, rather than geological. A definition five percent larger forms the Benfleet and Southend Marshes Ramsar site and Special Protection Area. In the centre-west, more than ten percent of the Site is the Leigh National Nature Reserve (NNR), which has been appraised in detail in A Nature Conservation Review as a site of national importance. The SSSI and NNR include the eastern half of Two Tree Island, in Leigh on Sea which is managed by the Essex Wildlife Trust. A narrow majority of the Site is the Southend on Sea Foreshore Local Nature Reserve.
The Crouch and Roach Estuaries are a 1729 hectare biological Site of Special Scientific Interest (SSSI) at the mouth of the Crouch and Roach rivers in Essex. The Crouch part of the SSSI stretches from near Battlesbridge to Foulness Island, and the Roach from Rochford to the junction with the Crouch. Part of the site is in the Mid-Essex Coast Special Protection Area under the EC Directive on the Conservation of Wild Birds, and a Ramsar wetland site of international importance. It is also part of the Essex Estuaries Special Area of Conservation. An area of 65 hectares is managed by the Essex Wildlife Trust as the Lion Creek and Lower Raypits nature reserve and 8 hectares at Woodham Fen, both of which are managed by the Essex Wildlife Trust. A small area is also a geological SSSI, The Cliff, Burnham-on-Crouch.
Hamford Water is a 2,185.8-hectare (5,401-acre) biological Site of Special Scientific Interest between Walton-on-the-Naze and Harwich in Essex. The site is a tidal inlet which has marsh grasslands, creeks, mud and sand flats, salt marshes, islands and beaches. It is described by Natural England as "of international importance for breeding little terns and wintering dark-bellied brent geese, wildfowl and waders, and of national importance for many other bird species." Rare plants include hog's fennel and slender hare's-ear. The main invertebrates are worms and thin-shelled molluscs. The largest island, Horsey Island, can be reached on foot at low tide across The Wade from Kirby-le-Soken.
The Cliff, Burnham-on-Crouch is a 4 hectare geological Site of Special Scientific Interest (SSSI) on the bank of the River Crouch between Burnham-on-Crouch and North Fambridge in Essex. It is also part of the biological SSSI, Crouch and Roach Estuaries. It is a Geological Conservation Review site both for its fossil birds and for its fishes and amphibians.
Maldon Cutting is a 0.1-hectare (0.25-acre) geological Site of Special Scientific Interest in Maldon in Essex. It is a Geological Conservation Review site.
Lion Pit is a 2.5-hectare (6.2-acre) geological Site of Special Scientific Interest in Grays in Essex. It is a Geological Conservation Review site, and part of the Chafford Gorges Nature Park, which is managed by the Essex Wildlife Trust.
Stour Estuary is a 2,523 hectare biological and geological Site of Special Scientific Interest which stretches from Manningtree to Harwich in Essex and Suffolk. It is also an internationally important wetland Ramsar site, a Special Protection Area and a Nature Conservation Review site. It is part of the Suffolk Coast and Heaths Area of Outstanding Natural Beauty, and there are Geological Conservation Review sites in Wrabness, Stutton, and Harwich Part of the site is managed by the Royal Society for the Protection of Birds, and a small area is Wrabness Nature Reserve, a Local Nature Reserve managed by the Essex Wildlife Trust.
The Naze Nature Reserve is a 45 hectare nature reserve on The Naze peninsula north of Walton-on-the-Naze in Essex. It is managed by the Essex Wildlife Trust,. Part of it, The Naze SSSI, is a geological Site of Special Scientific Interest and a Geological Conservation Review site.
Bawdsey Cliff is a 17.4-hectare (43-acre) geological Site of Special Scientific Interest north-east of Felixstowe in Suffolk. It is a Geological Conservation Review site, and is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Hascot Hill Pit is a 0.3-hectare (0.74-acre) geological Site of Special Scientific Interest south-west of Needham Market in Suffolk. It is a Geological Conservation Review site. It is also a Local Wildlife Site.
Weybourne Cliffs is a 40.9-hectare (101-acre) biological and geological Site of Special Scientific Interest at Weybourne, west of Sheringham in the English county of Norfolk. It is a Geological Conservation Review site. It is in the Norfolk Coast Area of Outstanding Natural Beauty.
Wretton SSSI is a 20.6-hectare (51-acre) geological Site of Special Scientific Interest north-east of Downham Market in Norfolk. It is a Geological Conservation Review site.
