Site overview: This site is located on the Suffolk coast south of Southwold in eastern England. It is made up of two large marshes and the tidal Blyth estuary. The reedbeds here are really important for breeding bitterns and marsh harriers. The shingle beaches provide shelter for breeding little terns which feed substantially outside of the site.

Designation Status
Last Updated
6 June 2017
MPA Type
Special Protection Area
MPA Purpose
areas of the most important habitat for rare (listed on Annex I to the Directive) and migratory birds within the European Union


52° 17' 14" North,
1° 37' 11" East

Surface Area

20.18 km2
(7.79 mi.2 )

Iconic features protected by this site


  • Tidal rivers, Estuaries, Mud flats, Sand flats, Lagoons (including saltwork basins)
  • Salt marshes, Salt pastures, Salt steppes


  • Little tern (Sterna albifrons) (Annex I (species))
  • Eurasian marsh harrier (Circus aeruginosus) (Annex I (species))
  • Northern shoveler (Anas clypeata) (Regularly occurring migratory species)
  • Eurasian teal (Anas crecca) (Regularly occurring migratory species)
  • Hen harrier (Circus cyaneus) (Annex I (species))
  • Pied avocet (Recurvirostra avosetta) (Annex I (species))
  • Gadwall (Anas strepera) (Regularly occurring migratory species)
  • Greater white-fronted goose (Anser albifrons albifrons) (Regularly occurring migratory species)