Castel Erek (Île Grande)
Pleumeur-Bodou
About
In this haven of peace, owned by the Conseil Général (local authorities), you will find the Sept Îles nature reserve building, which houses a permanent exhibition and the bird care centre of the ornithological station of the Ligue de Protection des Oiseaux (LPO), the national organisation for the protection of birds. At Castel Erek, a protected natural site, there is a panoramic view over one of the largest of the old granite quarry sites. Between 1860 and 1910, 800 tonnes of blue and white granite were extracted here every month. You can then continue your walk to Île Canton where you will find some remarkable medieval crosses.
Prajou Menhir
Trébeurden
Probably dating from the third millennium B.C., Prajou-Menhir is the largest of the gallery graves in Trébeurden. It measures 14.5 metres in length and is made up of seven stone slabs. Did you know... 
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Guardhouse (Île Grande)
Pleumeur-Bodou
The guardhouse, TyGward in Breton, is an imposing block of granite which stands at the highest point of Île Grande. Right around the periphery of the island, grey and blue granite was mined for... See
Granite quarries
Perros-Guirec
The pink stones of La Clarté have been used since the start of the twentieth century and are characterised by their excellent quality. On your visit to this quarry, find out about the means used to... See
The marina (Trozoul)
Trébeurden
Several hundreds of millions of years old, granite is timeless. Even now, its high quality makes it a material of choice for many uses. The marine bears testament to this: its wall was built from... See