Best natural monuments around Delley-Portalban offer a diverse landscape of scenic beauty and ecological significance. The region is characterized by its position between Lake Murten, Lake Neuchâtel, and Lake Biel, featuring both elevated viewpoints and extensive wetlands. This area provides opportunities to explore geological formations, historical sites, and rich biodiversity.
Last updated: October 27, 2026
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Interesting contribution in memory of this important researcher on the work of glaciers and where these huge granite erratics come from...
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Infantry position from World War I
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200 meters of pure playground with several corridors, caverns, and stairs. An adventure for all ages!
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Cycling around Mont Vully offers an unforgettable experience with stunning views of Lake Murten and Lake Neuchâtel. You’ll pass through vineyards, charming Swiss villages and rolling hills, providing a picturesque landscape ideal for a leisurely ride.
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La Lamberta Excavated in the molasse, they have 200 meters of galleries. The infantry work intended for the machine gun position is one of the scattered fortifications set up during the First World War to defend the Swiss Plateau. The construction of this infantry work took place between 1916 and 1917 and made it possible to protect the axis of Lake Morat. Today these caves have become a paradise for children for long games of hide-and-seek. https://www.j3l.ch/fr/P8751/lieux/sites-naturels/les-grottes-des-roches-grises-la-lamberta
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The Agassiz Stone, due to its size (10 m wide and 5 m high) and its particular geological structure (eye gneiss), is part of the heritage of the municipality. During the last glaciation, the Rhone glacier extended from Furka to Solothurn and covered the entire Plateau. Over the millennia, this erratic block was transported by the Val de Bagnes (VS) or Val d'Arolla glacier to Mont-Vully. Located in the forest east of Joressens, it bears the name of Louis Agassiz, a scientist (born in Môtier / Vully), who, at the time, developed the theory of the formation and movement of glaciers. A legend also earned it the name "Pierre du Palet Roulant". https://mont-vully.ch/culture-loisirs/curiosites
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Great view over Lake Murten to the Alps or the other way around over the Seeland to the Chasseral
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a very interesting place with lots of water!
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The region offers a diverse range of natural monuments. Key highlights include Mont Vully, known for its panoramic views and vineyards, and the Grande Cariçaie, Switzerland's largest lakeside nature reserve. You can also visit the historical Gor Mills, the scenic Grengspitz viewpoint, and the impressive Seyon Gorges.
For breathtaking vistas, Mont Vully is unparalleled, offering panoramic views over Lake Murten, Lake Neuchâtel, Lake Biel, the Jura Mountains, and the Bernese Alps. The Grengspitz also provides a wonderful perspective over Lake Murten and Mont Vully itself.
Yes, the region features interesting geological formations. On Mont Vully, you can find the significant Pierre Agassiz, an erratic block that played a role in the discovery of ice ages. The Seyon Gorges also showcase millions of years of geological history, with the Seyon River carving a deep channel through limestone rock.
Many sites blend natural beauty with rich history. Mont Vully has archaeological traces from the Celts and Helvetians, and its slopes are home to vineyards with 2,000 years of winemaking history. The Gor Mills are a testament to past hydraulic engineering, with some water wheels dating back to the 16th century. Grengspitz is a UNESCO World Heritage site due to its Neolithic and Bronze Age riverside settlements.
The Grande Cariçaie is Switzerland's largest lakeside nature reserve, stretching along the southern shore of Lake Neuchâtel. It's an internationally recognized wetland covering nearly 3,000 hectares, providing a crucial habitat for approximately 800 plant species and 10,000 animal species. It's a paradise for nature lovers and offers exceptional biodiversity.
Absolutely! The Mont Vully Caves, while man-made, offer an adventurous exploration opportunity that is particularly fun for children (remember to bring a torch!). The Grande Cariçaie also has nature centers like Centre-Nature La Sauge and the Champ-Pittet Pro Natura Centre, which are great for educational family visits. Grengspitz offers fireplaces and picnic areas, perfect for a family outing.
The region is excellent for outdoor enthusiasts. You can enjoy extensive hiking and cycling trails, especially around Mont Vully and through the Grande Cariçaie. The Grande Cariçaie also offers opportunities for nature observation from towers and even canoe expeditions. For more detailed routes, explore our guides for Gravel biking around Delley-Portalban, Cycling around Delley-Portalban, and Running Trails around Delley-Portalban.
The Grande Cariçaie is the prime location for wildlife observation. As Switzerland's largest lakeside nature reserve, it's home to a vast array of bird species, amphibians, and plants. Visitors can use observation towers and visit nature centers like Centre-Nature La Sauge in Cudrefin or the Champ-Pittet Pro Natura Centre to learn more and spot wildlife.
The region's natural monuments can be enjoyed year-round, but each season offers a different experience. Spring and autumn are ideal for hiking and cycling, with pleasant temperatures and vibrant colors in the vineyards and forests. Summer is perfect for enjoying the lakes and outdoor activities, while the panoramic views from Mont Vully can be stunning on clear winter days, and the Grande Cariçaie offers tranquil walks.
Even in winter, the natural monuments around Delley-Portalban offer unique experiences. The panoramic views from Mont Vully can be especially crisp and clear, often revealing snow-capped Alps. The Grande Cariçaie, while quieter, provides a serene atmosphere for peaceful walks and birdwatching, as many species overwinter in the wetlands.
Visitors frequently praise the stunning panoramic views from Mont Vully, often highlighting the vistas over the three lakes and distant mountains. The historical significance of sites like the Gor Mills and the adventurous exploration of the Mont Vully Caves are also highly appreciated. The tranquility and rich biodiversity of the Grande Cariçaie are consistently mentioned as major draws for nature lovers.


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