This archipelago is the largest nature reserve of marine birds in France. Boat trips leave from Trestraou and take visitors around the islands: first Rouzic, inhabited by an impressive colony of Northern gannets, then the Île de Malban and Île Bono, ..

The Côte de Granit Rose, which extends from Ploumanach to the Île Grande, between Perros-Guirec to the east and Trébeurden to the west, is a magical stretch of coastline. Its colour is particularly impressive, as are its unusual and occasionally amus..

On the Sentier des Douaniers pathway, it puts on various exhibitions relating to the formation of granite, including old or new methods for mining the stone.