There is a beautiful peninsula with fine sand beaches nearby which are excellent to practise surf and other water sports.
The population of San Cibrao is about 3,000 in July and August and about 2,000 the rest of the year.
Part of the town of San Cibrao lies on the "Peace Peninsula" (Peninsula de la Paz) which is surrounded by the Cantabrian Sea, whose waters in this area typically reach a high summer temperature of 18°C; there are five beaches in the area.
The area does not draw many tourists. The region's economy depends on fishing and on an aluminium plant owned by Alcoa. The nearby coast is generally undeveloped and receives strong north-easterly winds throughout the winter, which makes the comarca or administrative unit of la Mariña Lucense, like much of the Asturian and Basque coast, excellent for surfing and water sports.
The fiesta of A Maruxaina is celebrated the second Saturday of August. It is related to a popular legend about a siren who lives on some small islands, Os farallons, near San Cibrao. This festival has been distinguished by the National Centers of Cultural Interest. Most of the townspeople dress on this day as Maruxainos, that is, in costumes that resemble the dress of days past. Ritually, at noon, the mariners bring the siren from the islands onto shore, were in front of the museum they create a mock-trial to judge the Maruxaina on whether she is good or bad. After this the townsfolk serve a potent brew of "Queimada".