beautiful seascape in costa quebrada

sea cliff landform limestone karst seascape landscape coast litoral coastal nature ocean atlantic cantabrian costa quebrada scenic scenery beautiful broken liencres pielagos santander cantabria virgen del mar playa roman llanilla natural environment travel outdoors spain erosion cuisian eocene era sandy cenozoic syncline sedimentary rocks island lithology covachos eroded blue steep karstic overcast deep rocky coastline isla northern