At the end of town is the Avenida Da Libertade, turn right here to get to the albergue or continue straight along the beach walk. Arrows are sparse, but a few point the way to the Castro of Sampaio.
I stayed at Casa Da Praia which was excellent as a quiet space, somewhat expensive (59 eu) but if split with a buddy a double room isn’t too bad. There is a kitchen, an outdoor area / table and included breakfast. Close to the way, and very clean. Quiet once everyone is in bed, and a shared bathroom (one shower only) which is suffice given that the house is quite small.