Best natural monuments around Ogens offer a diverse landscape for exploration. The region features historical megalithic sites, observation towers overlooking nature reserves, and unique bridges within forested areas. Visitors can discover a variety of natural and man-made features that highlight the area's ecological and historical significance, with more than 6 natural monuments to explore.
Last updated: June 26, 2026
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The menhirs of Clendy are over 6000 years old and are the most important Neolithic site in Switzerland. The place was a meeting place and the statue menhirs were worshipped here.
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Obligatory stop to admire the Grande Cariçaie reserve. The new observation tower, inaugurated in March 2018, offers visitors three floors to enjoy the panorama of the Grande Cariçaie and benefit from a new observation point at water level, dear to photographers. This architectural jewel is made of 100% Swiss wood. Since the end of May 2019, it has been equipped with dry toilets. At the end of the marsh trail, you will find a pontoon perfect for observation. A little corner of paradise from where you can observe the characteristic animals of the marsh. With binoculars, a camera, or just your sharp eyes, stay still, quiet, and watch. source: https://www.pronatura-champ-pittet.ch/fr/reserve-naturelle
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Nice wooden bridge with a picnic spot next to it
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Nice bridge with a picnic spot right next to it
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Nice part of the path between a clearing and a forest with identified trees
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Exciting area that can also be easily reached on foot or by bike from Yverdon-les-Bains: https://www.teddy-b.ch/tipp-der-woche/menhire-von-clendy-yverdon-les- bains-vd-stein-time /
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Here, the pile of imperfect millstones left on the site by the grinders and the circular cuts in the quarry, still visible in the negative, bear witness to the mining activity on this site in Roman times. The quarry was discovered in 1943 when human bones were unearthed during municipal work. In 2018, the cantonal archaeology department cleaned the site, which was gradually covered with moss and earth: the traces of the cuts are clearly visible again. The six educational panels on the site provide information on the discovery of the site, the historical context of the region, the technique of millstone extraction, its use in Roman mills, the shell sandstone and its geology. Text: https://www.chemin-des-bles.ch/chavannes-le-chene.html, translated with www.DeepL.com/Translator
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The region around Ogens offers a diverse range of natural monuments. You can visit the ancient Menhirs of Clendy, an impressive megalithic complex with 45 stones dating back 6000 years. Another highlight is the Brigands Bridge, a wooden bridge nestled in a beautiful forest, known for its picnic spot and accessibility.
Yes, the Menhirs of Clendy is a significant historical site. This prehistoric stone alignment, located near Yverdon Beach, features 45 menhirs and statue menhirs, making it one of the most impressive megalithic complexes in Switzerland. It was discovered in 1878 and restored in 1975.
Absolutely. The Observation Tower at Grande Cariçaie Nature Reserve offers panoramic views of the Grande Cariçaie. Climbing the tower provides a unique perspective and is highly recommended, especially for bird lovers. Another excellent spot is the Champ-Pittet Observation Tower – Grande Cariçaie Nature Reserve, which features three floors for enjoying the panorama and a new observation point at water level.
Many natural monuments in the area are family-friendly. For instance, the Menhirs of Clendy offers an exciting historical experience for all ages. The observation towers at Grande Cariçaie Nature Reserve, including Observation Tower at Grande Cariçaie Nature Reserve and Champ-Pittet Observation Tower – Grande Cariçaie Nature Reserve, provide engaging opportunities for children to observe wildlife. The Brigands Bridge also has a picnic spot, perfect for a family outing.
Yes, the Brigands Bridge is noted for its accessibility, including provisions for wheelchairs, making it a great option for visitors with mobility needs to enjoy the forest setting and picnic area.
The Grande Cariçaie Nature Reserve, home to the observation towers like Observation Tower at Grande Cariçaie Nature Reserve and Champ-Pittet Observation Tower – Grande Cariçaie Nature Reserve, is a haven for wildlife, especially birds. It's an ideal spot for bird lovers to observe various species in their natural habitat. The reserve is a protected wetland area, offering a rich ecosystem.
While specific seasonal advice isn't provided, natural monuments like the observation towers at Grande Cariçaie are excellent for birdwatching, which can be particularly rewarding during migration seasons (spring and autumn). Forest walks to sites like the Brigands Bridge are pleasant in spring, summer, and autumn. Historical sites like the Menhirs of Clendy can be visited year-round, though warmer, drier months might offer a more comfortable experience.
Yes, the region offers various outdoor activities. For cycling, you can explore routes like the "Roadbike loop from Donneloye" or the "Grandson Castle – Vineyards along Lake Neuchâtel loop from Bercher." If you prefer running, trails such as "The Covet Mill – Vallon des Vaux loop from Molondin" are available. You can find more details on these and other routes in the Road Cycling Routes around Ogens, Cycling around Ogens, and Running Trails around Ogens guides.
Specific parking information for each monument isn't detailed, but generally, natural monuments and reserves often have designated parking areas nearby. For sites like the Menhirs of Clendy, which is near a main road, or the Grande Cariçaie Nature Reserve, you can usually find parking facilities. It's advisable to check local signage upon arrival.
While the guide doesn't explicitly state dog policies for every monument, many outdoor areas and trails in Switzerland are dog-friendly, often requiring dogs to be on a leash. For nature reserves like Grande Cariçaie, it's best to check their specific rules regarding pets to ensure the protection of wildlife.
Visitors appreciate the blend of historical significance and natural beauty. The ancient Menhirs of Clendy offers a fascinating glimpse into the past, while the observation towers at Grande Cariçaie Nature Reserve, like Observation Tower at Grande Cariçaie Nature Reserve, are loved for their panoramic views and birdwatching opportunities. The Brigands Bridge is popular for its serene forest setting and picnic spot.
Beyond the well-known sites, the broader Grande Cariçaie Nature Reserve, which includes Pro Natura, offers many secluded spots. Exploring the marsh trails and lesser-known paths can lead to unique observation points and a deeper immersion in the protected nature, away from the main visitor areas. These areas are perfect for quiet observation and photography.


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