common seal resting on sand flat near terschelling, waddensea, n

alone boschplaat coastal common dutch ebb europe european flat flats friesland frisian fryslan grey grypus halichoerus harbor harbour holland koffiebonenplaat low mammals nature netherlands one phoca relaxing resting sand sandbank sandbar sandflat sea seals shoal silt single terschelling tidal tide vitulina wadden waddensea waddenzee water wetlands wild wildlife