• Country: 
  • Site number: 
  • Area: 
    6,159 ha
  • Designation date: 
  • Coordinates: 
    51°39'N 04°16'E
Materials presented on this website, particularly maps and territorial information, are as-is and as-available based on available data and do not imply the expression of any opinion whatsoever on the part of the Secretariat of the Ramsar Convention concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries.


Krammer-Volkerak. 04/09/95; Zeeland, Noord-Brabant, Zuid-Holland; 6,159 ha; 051°39’N 04°15’E. Natura 2000 (SPA, SAC). The Site is a former tidal estuary of the Rhine-Maas river system, which was transformed into a permanent freshwater lake by its separation from the North Sea in 1987. The Ramsar Site boundary was adjusted to the Natura 2000 site in 2014. The Site’s islands, forested peatlands, mud flats and intertidal marshes are very important resting, moulting, feeding and breeding grounds for many species of waterbirds which are threatened in Europe, such as Kentish plover (Charadrius alexandrinus) and common tern (Sterna hirundo). The Site also supports over 50,000 wintering waterbirds and more than 1% of the population of eight bird species. Meanwhile it plays an important role in flood regulation. Human activities include commercial and recreational fishing, shipping traffic, nautical sports and water management. The main threats to the Site’s ecological character are pollution, eutrophication and bird disturbance from recreational activities. Ramsar site no. 747. Most recent RIS information: 2013.

Administrative region: 

  • National legal designation: 
    • Special Area of Conservation (Habitats Directive 92/43/EEC) - Krammer-Volkerak
    • Special Protection Area (Birds Directive 79/409/EEC, 1995) - Krammer-Volkerak
  • Regional (international) legal designations: 
    • EU Natura 2000
  • Last publication date: 


Ramsar Information Sheet (RIS)

Archived RIS