Arcade is one of the two parishes that form the Concello de Soutomaior . It is famous for the quality of the oysters that are bred at the mouth of the river Verdugo . In early April , coinciding with the best time to taste this filtering mollusk, a massive party with several full stands of natural oysters with lemon , cooked or pie is organized and accompanied with white wine Albariño . Due to the shortage of oysters are grown mainly in punts, floating structures very common to see in the Rias Baixas .