Cabo Vidio is the most impressive sites in Asturias. If you think the region itself is impressive, then this place is a must. Leaving Cudillero, you have to go towards the sea to access one of the most impressive cliffs in the Spanish north coast. Without any barriers, one can visit cliff that is more than 200 meters high, which is extremely scary. From there you can see much of the Asturian coast and almost to the Playa del Silencio, which is another great site.