Dolmen of a Pedra da Arca de Regoelle Nature · Dumbría, Fisterra, A Coruña Megalithic passage tomb raised with great granite slabs at the place of Regoelle, one of the largest in Galicia, dated between 3500 and 2700 BC and the oldest vestige of settlement in the concello, which also preserves thirty-three burial mounds spread across its hills, among them those of Prado do Rei and Pedra do Boi. Photo: Lameiro (CC BY-SA 4.0) What to see and do in Dumbría