itzurun beach near zumaia, basque country with cliffs of laminated rock geological formations called flysch

itzurun beach geology flysch layered laminated zumaia seascape surf erosion wave scenery people haze basque country geologic scene guipuzcoa nature touristic shore rock formation cliff tourism scenic ocean atlantic geological eroded nobody coastal holiday rocky gipuzkoa water euskadi sea travel natural landmark coastline spain landscape stone mountain coast view near cliffs formations called flysch concept