On the extremity of the peninsula on which it is situated are fortified remains of a town which was of considerable importance from the 14th to the 16th centuries and included, besides Penmarc'h, Saint-Guénolé and Kerity. It owed its prosperity to its cod-banks, the disappearance of which, together with the discovery of the Newfoundland cod-banks and the pillage of the place by the bandit La Fontenelle in 1595, contributed to its decline.
The church of Saint Nouna, a Gothic building of the early 16th century at Penmarc'h, and the church of St. Guénolé, an unfinished tower, and the church of Kerity are of interest. The coast is very dangerous. On the Pointe de Penmarc'h stands the Phare d'Eckmühl, with a light visible for 100 km (60 mi). There are numerous megalithic monuments in the vicinity.
