Best natural monuments around Ploeren are situated within the Regional Natural Park of the Gulf of Morbihan, an expansive area known for its biodiversity and diverse landscapes. Ploeren, a commune blending urban and rural aspects, offers access to well-preserved natural spaces within the Morbihan region of Brittany. The area provides a base for exploring significant natural features, from coastal viewpoints to ancient historical sites. Its proximity to the Gulf of Morbihan makes it an excellent starting point for exploring this…
Last updated: August 13, 2026
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The Cromlech de Kergonan is located a little way back from the path. There is a small car park in front of it. This large stone circle is not fully accessible, with parts lying on private land.
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Cycle the Rives du Vincin trail, which winds through a protected natural site teeming with biodiversity. This leisurely route follows the Vincin River and takes you through lush woodlands and wetlands that are home to a variety of native bird and plant species. The area is a designated nature reserve, ensuring that its rich ecosystem is preserved. The trail is largely flat, making it ideal for a relaxed stroll, with panoramic views inviting you to pause and appreciate the serenity of the place.
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Beautiful views of the islands of the Gulf of Morbihan.
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Pointe de Brouel is the westernmost part of the Island of Arz (Morbihan). This similarity in name with the nearby Pointe de Brouel on Île aux Moines originated four thousand years before our era, when the two islands were still connected by an isthmus. According to a legend, a young man from the Île d'Arz was madly in love with a young girl from the Île aux Moines, but her parents were opposed to his marriage and decided to entrust him to the monks. His beauty, however, joined him every day. The parents asked the superior of the monastery to chastise the couple. One evening, while Beauty was joining her lover on the isthmus, the sea separated the two islands and drowned the young girl.
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Eastern point of the strait, which constitutes the entrance to the Gulf of Morbihan. It is very impressive to see the current in this place, provided you choose the right time. Perhaps also interesting: the further path along the north coast towards the 'Monteno' can very well be done from here via the beach - this avoids a larger piece of tarmac road. At least at low tide.
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This tree is absolutely majestic! not to miss !
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This tree is absolutely majestic !!! 🤩
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The Kergonan Cromlech, the largest stone circle in France, awaits you here. To do this, stay in Locmiquel on the Route du Dolmen (do not turn left into Rue du Greignon) and walk up to the old stone house with the two gabled windows and the light blue shutters - here is the well signposted entrance to the stone circle (if you use the blue wooden gate reach, you are too far!).
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Visitors particularly enjoy Bilgroix Point, which offers stunning views of the islands in the Gulf of Morbihan and a chance to observe the strong tidal currents. Another favorite is the Vincin River Nature Reserve, a protected area with trails through woodlands and wetlands, perfect for nature observation.
Yes, the Vincin River Nature Reserve is largely flat and offers a relaxed stroll through nature, making it ideal for families. Additionally, the Tréhuinec Mill – Kermesquel Natural Area, bordering Ploeren, features easy circular trails and a tranquil setting perfect for family outings.
The Vincin River Nature Reserve is a designated nature reserve teeming with various native bird and plant species. The Tréhuinec Mill – Kermesquel Natural Area is also recognized as a good spot for birdwatching, with potential sightings of species like the Great Spotted Woodpecker and Eurasian Nuthatch. The broader Regional Natural Park of the Gulf of Morbihan is renowned for its exceptional biodiversity, including migratory birds and marine life.
The Tréhuinec Mill – Kermesquel Natural Area is notably dog-friendly, featuring a no-leash zone and a dedicated swimming area for dogs, along with shaded seating and free parking, making it a convenient destination for pet owners.
You can visit the Mané Rethual Dolmen in Locmariaquer, which is part of the region's rich megalithic heritage. Another significant historical site is the Kergonan Stone Circle, known as the largest stone circle in France.
There are numerous hiking opportunities. For instance, you can explore the trails within the Vincin River Nature Reserve. The Tréhuinec Mill – Kermesquel Natural Area offers easy, circular hiking trails spanning approximately 2.5 km. For more options, you can find various routes in the Hiking around Ploeren guide, including the 'Tréhuinec Mill – Kermesquel Natural Area loop from Park er Hont'.
Yes, the Tréhuinec Mill – Kermesquel Natural Area is designed to be accessible for individuals in wheelchairs, offering a serene escape into nature for everyone.
The region, including the Gulf of Morbihan, is beautiful throughout the warmer months, from spring to early autumn. Spring offers blooming flora and active birdlife, while summer provides pleasant weather for outdoor activities. Autumn brings vibrant colors to the landscapes. Always check local weather conditions before your visit.
Absolutely. Bilgroix Point is a prime location for panoramic views of the Gulf's islands. Another excellent spot is Pointe de Brouel, located on the Island of Arz, offering stunning coastal scenery.
Beyond hiking, the area offers various outdoor activities. You can find mountain biking trails in the MTB Trails around Ploeren guide, such as the 'Moulin-L'Evêque footbridge – Le Bono Suspension Bridge loop'. For runners, there are numerous routes listed in the Running Trails around Ploeren guide, including the 'Jules Gillet Cross loop'.
Ploeren is situated within this expansive park, which is renowned for its exceptional biodiversity. It encompasses maritime spaces, islands, and islets, supporting a wide array of animal and plant species, including migratory birds, seals, dolphins, and the speckled seahorse. Its diverse landscapes, from forests to coastlines, offer rich opportunities for nature observation and appreciation.
While not strictly 'hidden,' the Tréhuinec Mill – Kermesquel Natural Area offers a serene and often less crowded experience compared to more prominent sites. Its tranquil setting and dog-friendly amenities make it a delightful discovery for those seeking a peaceful natural retreat close to Ploeren.


Extend your search for the best caves by checking out these guides of the top ones around Ploeren: