The Dutch Waddenzee with the Wadden Sea Islands Texel, Vlieland, Terschelling, Ameland, Schiermonnikoog and Rottumeroog. The Wadden Sea stretches from Den Helder to Delfzijl and Emden in Ostfriesland (Northwest Germany). More info about the Wadden Sea is at http://en.wikipedia.org/wiki/Wadden_Sea (http://en.wikipedia.org/wiki/Wadden_Sea).