Trilateral Transboundary Ramsar Site: Wadden Sea (Denmark - Germany - Netherlands), 2015: joint instrument

Denmark: Vadehavet (Wadden Sea) (designated 1987).
Germany: Hamburgisches Wattenmeer (1990), Schleswig-Holstein Wadden Sea and adjacent areas (1991), Wattenmeer, Elbe-Weser-Dreieck(1976), Wattenmeer, Jadebusen & westliche Wesermündung (1976), Wattenmeer, Ostfriesisches Wattenmeer & Doilart (1976).
The Netherlands: North Sea Coastal Area (Noordzeekustzone) (2000), Waddenzee (Wadden Sea) (1984, now includes former Sites Boschplaat and Griend), Duinen en Lage land Texel (2000), Duinen Vlieland (2000), Duinen Terschelling (2000), Duinen Ameland (2000) and Duinen Schiermonnikoog (2000).