When the remains of the apostle Santiago, accompanied by his faithful followers Atanasio and Teodoro, arrived in Galicia, they entered through the Arousa estuary. It is thought that the boat had to navigate the northern part of this estuary to avoid the island of Arousa. This road runs through these towns, which, starting from Ribeira, advances along the coast of Puebla del Caramiñal, Boiro, Rianxo and Dodro.
