You might want to get your camera out and head to Basilica of San Martin de Mondonedo— just one of the landmarks located 2.3 mi (3.7 km) from central Foz.
If being by the water is a major draw, Praia dos Fondás is a spot you might want to check out, located 1 mi (1.6 km) from central Foz. Catch the sunset by the shore at Praia da Anguieira and Praia de Tupide, located nearby.