emerald rocky coast, turquoise shallow waters of bay of biscay and two islands isla de aquech, gaztelugatxe with hermitage

aquech atlantic basque bay biscay blue bluff calm cape cave cirrus cliff cloud coast coastline country dreary emerald gaztelugatxe geology greenery harbor horizon horizontal island karst limestone matxitxako mountain nature ocean overcast peninsula photography ridge ripple rock sea seascape shore silence sky spain sparse stone summer surface turquoise viewpoint water