spectacular coastal landscape with steep cliffs and rocky formations carved out by erosion

islet urros liencres costa quebrada sea stack rock formations ocean landscape rocky coastline scenic scenery seascape buho urro mayor cliff vertical steep ledge monolith baselga pielagos bay biscay cantabrian coast atlantic cantabria santander spain europe coastal erosion carved abrasion platform wavecut outcrop geological syncline marlstone limestone lithology nature natural outdoors travel panorama tide wave action spectacular cliffs action