Redgrave and Lopham Fens is a 127 hectare biological Site of Special Scientific Interest between Thelnetham in Suffolk and Diss in Norfolk. It is a national nature reserve, a Ramsar internationally important wetland site, a Nature Conservation Review site, Grade I, and part of the Waveney and Little Ouse Valley Fens Special Area of Conservation. It is managed by the Suffolk Wildlife Trust.
Knettishall Heath is a 91.7-hectare (227-acre) biological Site of Special Scientific Interest west of Knettishall in Suffolk. A larger area of 176 hectares is the Knettishall Heath Nature Reserve, which is managed by the Suffolk Wildlife Trust.
Suffolk Wildlife Trust (SWT) describes itself as the county's "nature charity – the only organisation dedicated wholly to safeguarding Suffolk's wildlife and countryside." It is a registered charity, and its headquarters is at Brooke House in Ashbocking, near Ipswich. It was founded in 1961, and is one of 46 wildlife trusts covering the Great Britain and Northern Ireland. As of March 2017, it has 13,200 members, and it manages 3,120 hectares of land in 60 nature reserves, most of which are open to the public. It had an income of £3.9 million in the year to 31 March 2017.
Great Eastern Pingo Trail is a 9.2 kilometres long footpath along a disused railway line north of Thetford in Norfolk. It is a 4.2-hectare (10-acre) Local Nature Reserve, and it crosses three Sites of Special Scientific Interest, Thompson Water, Carr and Common, Breckland Forest and Cranberry Rough, Hockham. It also crosses Thompson Common, which is a nature reserve managed by the Norfolk Wildlife Trust and is a Nature Conservation Review site, Grade I. It further crosses Norfolk Valley Fens Special Area of Conservation and Breckland Special Protection Area.
Thompson Water, Carr and Common is a 154.7-hectare (382-acre) biological Site of Special Scientific Interest north of Thetford in Norfolk. Most of it is managed by the Norfolk Wildlife Trust as Thompson Common. It is a Nature Conservation Review site, Grade I, and part of the Norfolk Valley Fens Special Area of Conservation. It is crossed by the Great Eastern Pingo Trail Local Nature Reserve.
Wangford Warren and Carr is a 67.8-hectare (168-acre) biological Site of Special Scientific Interest between Brandon and Lakenheath in Suffolk. It is a Nature Conservation Review site, Grade I, and part of the Breckland Special Area of Conservation, and Special Protection Area An area of 15 hectares is managed as a nature reserve by the Suffolk Wildlife Trust
Barnby Broad and Marshes is a Site of Special Scientific Interest (SSSI) in the Waveney district of the English county of Suffolk. The site is 189.6 hectares in size. It is in the parishes of North Cove and Barnby, located between Beccles and Lowestoft in the north of the county. The site is bordered on its southern edge by the East Suffolk railway line and to the north by the River Waveney. It is a Special Area of Conservation, a Special Protection Area under the EC Birds Directive, and a Ramsar internationally important wetland site. There are two Suffolk Wildlife Trust nature reserves in the site, Castle Marshes and North Cove.
Dingle Marshes is a 93-hectare (230-acre) wildlife reserve on the North Sea coast of the English county of Suffolk. The reserve is located between Dunwich and Walberswick, approximately 4 miles (6.4 km) south-west of Southwold. The marshes make up part of the Suffolk Coast National Nature Reserve along with reserves at Walberswick and Hen Reedbeds. They are owned jointly by the RSPB and Suffolk Wildlife Trust and are managed by these two organisations and Natural England. The site is in the Dunwich Heaths and Marshes Nature Conservation Review site, Grade I, the Minsmere-Walberswick Ramsar internationally important wetland site, the Minsmere to Walberswick Heaths and Marshes Special Area of Conservation, and the Minsmere-Walberswick Special Protection Area under the European Union Directive on the Conservation of Wild Birds.
Blo' Norton and Thelnetham Fens are a 21.3-hectare (53-acre) biological Site of Special Scientific Interest (SSSI) on the Norfolk/Suffolk border. Blo' Norton Fen is in the parish of Blo' Norton in Norfolk and Thelnetham Fen is in Thelnetham parish in Suffolk. It is a Nature Conservation Review site, Grade 2, and part of the Waveney and Little Ouse Valley Fens Special Area of Conservation, Thelnetham Fen is managed by the Suffolk Wildlife Trust and Blo' Norton Fen by the Little Ouse Headwaters Project (LOHP).
Castle Marshes is a 71 hectare nature reserve west of Lowestoft in Suffolk. It is managed by the Suffolk Wildlife Trust. It is part of the Barnby Broad and Marshes Site of Special Scientific Interest the Broadland Ramsar internationally important wetland site, the Broadland Special Protection Area under the European Union Directive on the Conservation of Wild Birds, and The Broads Special Area of Conservation.
Sprat's Water and Marshes, Carlton Colville is a 57.1-hectare (141-acre) biological Site of Special Scientific Interest on the western outskirts of Lowestoft in Suffolk, England. It is part of the Broadland Ramsar internationally important wetland site, and Special Protection Area under the European Union Directive on the Conservation of Wild Birds, and part of The Broads Special Area of Conservation. The northern part of the site is Carlton Marshes, which is part of Carlton and Oulton Marshes, a nature reserve managed by the Suffolk Wildlife Trust.
Carlton and Oulton Marshes is a 151 hectare nature reserve in Lowestoft in Suffolk. It is managed by the Suffolk Wildlife Trust. Carlton Marshes is part of the Sprat's Water and Marshes, Carlton Colville Site of Special Scientific Interest, the Broadland Ramsar internationally important wetland site, the Broadland Special Protection Area under the European Union Directive on the Conservation of Wild Birds, and The Broads Special Area of Conservation.
Bugg's Hole Fen is a 3.7-hectare (9.1-acre) biological Site of Special Scientific Interest north-west of Thelnetham in Suffolk.
Ant Broads and Marshes is a 745.3-hectare (1,842-acre) biological Site of Special Scientific Interest north-east of Norwich in Norfolk. Most of it is a Nature Conservation Review site, Grade 1, and it is part of the Broadland Ramsar and Special Protection Area, and The Broads Special Area of Conservation. Part of it is the Barton Broad nature reserve, which is managed by the Norfolk Wildlife Trust, and two areas are National Nature Reserves.
Potter and Scarning Fens, East Dereham is a 6.2-hectare (15-acre) biological Site of Special Scientific Interest south of Dereham in Norfolk. It is part of the Norfolk Valley Fens Special Area of Conservation. Scarning Fen is a Nature Conservation Review site, Grade I, and it is managed by the Norfolk Wildlife Trust.
Scarning Fen is a 4-hectare (9.9-acre) nature reserve west in Dereham in Norfolk. It is managed by the Norfolk Wildlife Trust. It is a Nature Conservation Review site, Grade I, and is part of Potter and Scarning Fens Site of Special Scientific Interest and Norfolk Valley Fens Special Area of Conservation.
