The monastery of San Martiño de Xuvia is located in a privileged enclave of the Narón municipality. In the parish of O Couto, a few meters from the estuary, the monastery, currently owned by the Diocese of Mondoñedo-Ferrol, is one of the main tourist attractions of the city.

Various studies place the construction date of this monastery in the 9th century, although they agree in highlighting that its period of greatest splendor was reached with its incorporation into the Cluny Order in the 12th century, following a donation from the Traba family. Previously, in the Middle Ages, the Benedictine monks took charge of both the church and the rectory. Until the Mendizábal disentailment, which began in Spain in the 18th century, the monastery was incorporated as a priory into the monastery of San Salvador de Lourenzá (Lugo).

The construction preserves the Romanesque church from the 12th and 13th centuries, although over the years some tasks were carried out in favor of its conservation. The basilica plan of the temple has three naves of five sections with raised semicircular arches, and the capitals sculpted on large column pillars separate the main nave from the construction. Inside, several tombs from the medieval period are preserved, including that of the knight Rodrigo Esquío, from the 15th century. On the exterior of the monastery, three apses with semicircular windows stand out, as well as its main façade, which underwent several reconstructions.

The Ministry of Culture declared this monastery, located on the full route of the English Way of Saint James, as a national artistic monument in 1972.

The intense programming designed by the Tourism and Culture departments of the Narón City Council includes the organization, throughout the year, of guided tours of the monastery and also chamber concerts inside the church.