Birling Gap chalk cliff coast cream danger England english evening face Great Britain height high natural nature rock rockfall stone Sussex white barnacles Cirripedia Cornish cornwall low tide Mollusca mussels Mytilus pool rockpool rocks seashells sessile shellfish architecture bench clouds coastline coruña down element elements eu galicia horizon island islands line ocean padded padding pavement portiño power rest roches saavem sea sit sky Spain tidal water waves boulder conifer cyprus dry dusty green hill landscape mediterranean mountain northern outcrop panorama parched pine plain sandy view black coruna dark dusk portiño shade stones sun beach blue canada dunes east grasses nova scotia rain rain clouds salt sand showers summer bay coastal cove marine reflection shower boat carved eerie eroded erosion form formation granite macabre odd Sardinia ship strange trawler unusual weird coastal and oceanic landforms Natural landscape Seaford Head shore flowers home house Lofoten Islands norway norwegian Umbelliferae umbellifers wild autumn beautiful beauty Gower heath heather hillside track trail wales