Naturdenkmäler Bolken offers a landscape shaped by glacial activity, featuring agricultural areas and forests. The municipality is situated on a moraine landscape, with the Inkwilersee forming a notable natural element. Bolken lies at an elevation of 496 meters, approximately 10 km east of Solothurn. These geological Besonderheiten Bolken contribute to the area's natural character.
Last updated: May 14, 2026
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A beautiful hike and not too strenuous. While it's still pleasant here in the gorge in summer, it's worth going a little off-season, when it's much quieter.
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This boulder is called Grossi Flue. It weighs a whopping 3,500 tons and has a volume of 1,200 cubic meters. The boulder was brought here by the Rhone Glacier – this is evident from the hornblende gneiss. The enormous boulder was purchased by the Swiss Society of Natural Sciences in 1869 and placed under protection. Otherwise, it would likely have fallen victim to railway construction.
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The Aare and Emme meet in Zuchwil at the Emmenspitz. 👌😀
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All-round view of the Jura and Bernese Alps
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The Emmenspitz is directly behind ARA and KVA
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On the Emmenspitz directly behind the KVA and the ARA with a view of the Attisholz industrial area
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With a height of 818 m, the Oberbühlchnubel towers above the surrounding hills of the Wynigen Mountains. The vantage point with its Brätliplatz is a popular destination for hikers.
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The region around Bolken is characterized by its moraine landscape, a result of the Rhone glacier. You can discover fascinating remnants of the Ice Age, such as the Grossi Flue Erratic Boulder, a massive 3,500-ton rock brought here by the glacier. The area also features gorges like the Verenaschlucht, showcasing the natural forces that shaped the landscape.
Yes, several natural monuments are family-friendly. The Verenaschlucht and Hermitage offers an easy-to-walk path through a romantic gorge. The Emmenspitz – Confluence of the Emme and Aare provides a pleasant spot with seating and a barbecue area. Additionally, Lake Burgäschi is great for families, offering swimming opportunities and a nature reserve to explore.
For panoramic views, consider visiting Oberbühlchnubel. It offers sweeping vistas from the Bernese Oberland to the Solothurn Jura on clear days. The Emmenspitz also provides a lovely viewpoint to observe the confluence of the Emme and Aare rivers.
The area around Bolken is excellent for various outdoor activities. You can find numerous hiking trails, including easy loops around Lake Burgäschi and Inkwilersee. For more options, explore the Hiking around Bolken guide. There are also extensive routes for MTB Trails and Road Cycling.
Yes, the Verenaschlucht and Hermitage is a notable example. This gorge features a hermitage and two chapels, offering a blend of natural beauty and historical significance. It's a place where nature and human history intertwine.
Absolutely. Lake Burgäschi is a popular spot for swimming, featuring a lido and other opportunities to enjoy the water. The lake is surrounded by forest and reeds, making it a picturesque location for relaxation and water-based recreation.
The natural monuments around Bolken can be enjoyed throughout the year. Spring and autumn offer pleasant temperatures for hiking and exploring the varied landscapes. Summer is ideal for swimming at Lake Burgäschi, while winter can transform the moraine landscape into a serene, picturesque setting, though some paths might require appropriate gear.
The nature reserve surrounding Lake Burgäschi is an excellent place for wildlife spotting. The lake's forested and reedy shores provide habitats for various species, making it a peaceful location for nature observation.
Visitors frequently praise the wild and romantic atmosphere of the Verenaschlucht and the tranquil beauty of Lake Burgäschi. The scenic views from Oberbühlchnubel and the unique geological significance of the Grossi Flue Erratic Boulder are also highly appreciated.
The path through the Verenaschlucht is described as well-developed and easy to walk, making it suitable for a leisurely stroll. Many of the lake circuits, such as the one around Lake Burgäschi, also offer relatively flat and accessible terrain.
Many natural areas around Bolken are dog-friendly. However, it's important to note that at Lake Burgäschi, there is a leash requirement for dogs, especially within the nature reserve, to protect local wildlife. Always check local regulations for specific sites.


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