yesnaby castle sea stack and yesnaby cliffs on the mainland of orkney, scotland

cliff coast terrain rock sea shore cape ocean bay tower cove geology formation water ruins beach fortification wave arch atlantic attraction battery beautiful bigging borwick broch brough castle cliffs coastal coaster coastline devonian red flagstones geography guns iron age lower sandstones stromness magnificent mainland maritime navy noust old sandstone orkney precarious background scotland stack seascape stunning tourism tourist two legged visitor yesnaby group