seals lie on a mudflat in the frisian islands in north friesland

animal atlantic beach beautiful blue clouds coastline cute dune europe feature friesland frisia grass holiday holland horizon island memory nature netherlands nordfriesland north frisian sea northern northsea observation ocean postcard relaxation remember rottumerplaat sand schier seal sky summer sylt tourism tourist travel vacation water weather wildanimal wilderness wildlife seals lie mudflat islands front forbidden for tourists remembering