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.
Sizewell Marshes form a 260-acre biological Site of Special Scientific Interest adjacent to Sizewell in Suffolk. It is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty, and is part of a 356-acre (144-ha) nature reserve managed by the Suffolk Wildlife Trust as Sizewell Belts.
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.
Crag Farm Pit, Sudbourne is a 4.8-hectare (12-acre) geological Site of Special Scientific Interest east of Sudbourne in Suffolk. It is a Geological Conservation Review site, and within the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
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.
Neutral Farm Pit, Butley is a 1.1-hectare (2.7-acre) geological Site of Special Scientific Interest in Butley, east of Woodbridge in Suffolk. It is a Geological Conservation Review site, and is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Red House Farm Pit is a 0.5-hectare (1.2-acre) geological Site of Special Scientific Interest east of Wickham Market in Suffolk. It is a Geological Conservation Review site, and 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.
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.
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
Aldeburgh Brick Pit is a 0.9-hectare (2.2-acre) geological Site of Special Scientific Interest in Aldeburgh in Suffolk. It is a Geological Conservation Review site, and it is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Aldeburgh Hall Pit is a one hectare geological Site of Special Scientific Interest in Aldeburgh in Suffolk. It is a Geological Conservation Review site, and it 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.
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.
Sandlings Forest is a 2,483.8 hectare biological Site of Special Scientific Interest in two large blocks, Rendlesham Forest and Tunstall Forest, and two small ones, between Woodbridge and Aldeburgh in Suffolk. It is partly in the Sandlings Special Protection Area under the European Union Directive on the Conservation of Wild Birds. It is 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.
Tunstall Common is a 36.6 hectare biological Site of Special Scientific Interest east of Tunstall in Suffolk. 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.
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 Suffolk. It is a Geological Conservation Review site, and it is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Ramsholt Cliff is a 2.1-hectare (5.2-acre) geological Site of Special Scientific Interest north-west of Ramsholt in Suffolk. It is a Geological Conservation Review site, and it is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
