Natural monuments around Lanmérin feature diverse landscapes, including dramatic coastal formations, historical viewpoints, and unique geological sites. The region offers a variety of natural features, from ancient rock formations to preserved coastal areas. These sites provide opportunities to explore the natural environment and historical significance of the area. Lanmérin's surrounding areas are characterized by their natural beauty and geological interest.
Last updated: July 4, 2026
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Very nice tour, highly recommended.
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Previously at the base of an ancient tumulus, these megaliths discovered in Penvénan were for a time placed in Tréguier before being repatriated to their original commune, next to the Saint Gonval chapel.
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Located north of Trestrignel, the Pointe du Château overlooks the town of Perros-Guirec to the east and the bay of the same name to the west. Picnic tables are available, ideal for a lunch break.
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Well, what can I say, simply beautiful
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Beautiful species-rich area with a dam that invites fishermen to go fishing
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Located on the banks of the Jaudy, the Kerdalo Gardens are an essential site in your discovery of the Jaudy estuary. Created in 1965 by Pierre Wolkonsky on the ruins of an old farm, this 18-hectare English-style estate is home to around 5,000 different plant species that live together around numerous ponds and basins. The highlight of this space, however, remains the superb garden of four squares, made up of interlocking checkerboards of Italian inspiration. Recognized as a remarkable garden and listed in the inventory of Historic Monuments since 2007, it has been owned by Christian Louboutin since 2021.
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This rock, topped with a sentry box, was used in the past to monitor enemy incursions from the small islands in the bay of Port-Blanc. Having been destroyed, the gatehouse was rebuilt at the beginning of the 20th century on the initiative of Théodore Botrel. He added two statues: that of Saint-Tugdual and that of Our Lady of the Sea. Source: http://www.tregor.fr/index.php/sites-remarquables/240:rocher-de-la-sentinelle-a-penvenan-port-blanc
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A sea wall holds the water at low tide in the bay here, formed by the sandy spit of the Lenn peninsula. You'll see that the boats stay afloat, like in the nearby port of Perros Guirec. It's a glorious area for wildlife including many species of native flowers, especially in summertime.
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Visitors frequently enjoy the Rocher de la Sentinelle, known for its historical sentry box and coastal views. The Pointe du Château offers scenic overlooks of Perros-Guirec, and the Lenn Basin is appreciated for its unique tidal management and rich wildlife.
Yes, several natural monuments are suitable for families. The Lenn Basin is a peaceful spot for observing local flora and fauna. Pointe du Château has picnic tables, making it ideal for a family lunch with a view. The Tossen Keler megaliths offer an interesting historical site for all ages, and the Jardins de Kerdalo provide beautiful, expansive grounds to explore.
The region's natural monuments often blend natural beauty with history. The Rocher de la Sentinelle, for instance, features a rebuilt sentry box that historically monitored enemy incursions, complete with statues. The Tossen Keler megaliths are ancient structures, once part of a tumulus, offering a glimpse into prehistoric times. Even the Jardins de Kerdalo, while cultivated, are recognized as a 'Remarkable Garden' and listed in the inventory of Historic Monuments.
The area around Lanmérin offers various outdoor activities. You can find numerous running trails, explore road cycling routes, or tackle mountain biking trails. Coastal paths like the GR34® near Rocher de la Sentinelle provide excellent hiking opportunities with magnificent panoramas.
The Lenn Basin is an excellent spot for observing local flora and fauna, especially during summer when many species of native flowers are in bloom. Its unique tidal environment also attracts various bird species.
The summer months are particularly pleasant for visiting, especially for sites like the Lenn Basin where native flowers are abundant. Coastal areas like Rocher de la Sentinelle and Pointe du Château are enjoyable in warmer weather for walks and picnics. The Jardins de Kerdalo are also at their peak beauty during spring and summer.
Absolutely. The Pointe du Château offers stunning views overlooking the town of Perros-Guirec and its bay. Similarly, the Rocher de la Sentinelle provides picturesque views of Port-Blanc Bay and its small islands.
Yes, the Jardins de Kerdalo are an essential site. While cultivated, these 18-hectare English-style gardens are renowned for their exceptional botanical diversity, artistic design, and integration with the natural landscape of the Jaudy estuary. They feature around 5,000 different plant species and are recognized as a 'Remarkable Garden'.
The terrain varies depending on the specific monument. Coastal areas like those near Rocher de la Sentinelle often feature rugged coastal paths, while areas around the Lenn Basin might offer flatter, more accessible walks. Inland sites like the Jardins de Kerdalo have well-maintained garden paths.
Visitors frequently highlight the blend of natural beauty and historical significance. The dramatic coastal formations, the tranquility of spots like the Lenn Basin, and the unique historical elements of sites like the Rocher de la Sentinelle are often praised. The opportunity for scenic walks and the picturesque views are also highly appreciated.


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