You reach the estuary of the Ulla River walking along the coast next to an area of salt marshes, and the ría of Arousa is left behind. The route continues till the town of Catoira, where you find the West Towers, used in the past to defend Santiago de Compostela against the Viking attacks. Only the remains of two of the original seven towers are standing, and they are located next to a small chapel devoted to the Apostle Saint James.
On the first Sunday of August, Catoira hosts the spectacular Viking Festival, declared of International Tourist Interest, where locals revive the Scandinavian invasions that took place one thousand years ago.
Once here, the route across As Rías Baixas is almost over, and then pilgrims have to continue towards Padrón and finally Santiago de Compostela. From Catoira, you cross the River System Ulla-Deza, going through the town of Portas until reaching Pontecesures. Here, at the border between the provinces of Pontevedra and A Coruña, the Way of the Father Sarmiento meets the Portuguese Way.