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.
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.
Sutton and Hollesley Heaths is a 483.3-hectare (1,194-acre) biological Site of Special Scientific Interest south-east of Woodbridge in Suffolk. Most of the site is managed by the Suffolk Wildlife Trust as Sutton and Hollesley Commons. It is part of the Sandlings Special Protection Area under the European Union Directive on the Conservation of Wild Birds, and the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
East Wretham Heath is a 141.1-hectare (349-acre) biological Site of Special Scientific Interest south-east of Thetford in Norfolk. It is a Nature Conservation Review site, Grade I, and it is managed by the Norfolk Wildlife Trust. it is part of the Breckland Special Area of Conservation and Special Protection Area.
Bixley Heath is a 5.1-hectare (13-acre) biological Site of Special Scientific Interest on the eastern outskirts of Ipswich in Suffolk. It is also a Local Nature Reserve owned and managed by Ipswich Borough Council.
Iken Wood is a 5.3-hectare (13-acre) biological Site of Special Scientific Interest south of Snape in Suffolk. It is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Valley Farm Pit, Sudbourne is a 0.5-hectare (1.2-acre) geological Site of Special Scientific Interest north of Orford in Suffolk. It is a Geological Conservation Review site, and in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Cavenham–Icklingham Heaths is a 419 hectare biological Site of Special Scientific Interest west of Icklingham in Suffolk. It is a Nature Conservation Review site, Grade I, and part of Breckland Special Area of Conservation and Breckland Special Protection Area under the European Union Directive on the Conservation of Wild Birds. Cavenham Heath is a 203.1 hectare National Nature Reserve.
Freston and Cutler's Woods with Holbrook Park is a 142 hectare biological Site of Special Scientific Interest south of Ipswich in Suffolk. The site is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty
Sudbourne Park Pit is a 1.1-hectare (2.7-acre) geological Site of Special Scientific Interest between Orford and Chillesford in Suffolk. It is a Geological Conservation Review site, and it is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Leiston - Aldeburgh is a 534.8-hectare (1,322-acre) biological Site of Special Scientific Interest which stretches from Aldeburgh to Leiston in Suffolk. Part of it is The Haven, Aldeburgh Local Nature Reserve, and another area is the North Warren RSPB nature reserve. There is also a prehistoric bowl barrow on Aldringham Common, which is a Scheduled Monument. The site is in the Sandlings Special Protection Area under the European Union Directive on the Conservation of Wild Birds, and the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Orwell Estuary is a 1,335.7 hectare biological Site of Special Scientific Interest which stretches along the River Orwell and its banks between Felixstowe and Ipswich in Suffolk. It is part of the Stour and Orwell Estuaries Ramsar site internationally important wetland site and 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.
Snape Warren is a 48 hectare biological Site of Special Scientific Interest east of Snape in Suffolk. It is part of the Sandlings Special Protection Area under the European Union Directive on the Conservation of Wild Birds, and in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Stoke Tunnel Cutting, Ipswich is a 2.2-hectare (5.4-acre) geological Site of Special Scientific Interest in Ipswich in Suffolk. It is a Geological Conservation Review site.
Crag Pit, Sutton is a 0.7-hectare (1.7-acre) biological Site of Special Scientific Interest north of Shottisham in Suffolk. It is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Ferry Cliff, Sutton is a 2.8-hectare (6.9-acre) geological Site of Special Scientific Interest in Suffolk. It is a Geological Conservation Review site, and it is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Nacton Meadows is a 4.5-hectare (11-acre) biological Site of Special Scientific Interest north-west of Levington in Suffolk. It is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty
Sinks Valley is a 24.9-hectare (62-acre) biological Site of Special Scientific Interest in Kesgrave, on the eastern outskirts of Ipswich in Suffolk, United Kingdom.
Broome Heath Pit is a 1.2-hectare (3.0-acre) geological Site of Special Scientific Interest east of Ditchingham in Norfolk. It is a Geological Conservation Review site and part of Broome Heath Local Nature Reserve
