Beautiful towns. In Ribadesella you could spend less time at the viewpoint (the climb is hard, but worth it) and a little more in the streets of the center, because you only see them on the way to the bus. In Llanes, avoid eating at La Bodega del Buzu, which despite the fact that the guys are very friendly, the food is not of good quality and they serve small portions, contrary to the rich and abundant Asturian spirit. Santillana is also beautiful, the three towns are highly recommended. Of course, the prices of everything are rather high, they are designed for tourists. They are places that cannot be missed on a trip to Asturias.