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Conservatoire du Littoral site classified as a regional reserve. A coastal strip of sand and pebbles extending 3.2 km into the sea, the Sillon is a geomorphological curiosity of a size unique in Europe. Ecologically rich thanks to its extraordinary flora and fauna, the Sillon is an important nesting site for seabird species (gravelots) and a migration and wintering ground for many waders, making it a major birdwatching spot in the Côtes d'Armor. Once linked to the islets of Olonne, the...
Openings
All year 2024 -
Location
Access
- Road (national / departmental) : D20