Canyons around Stüsslingen are characterized by natural formations such as gorges and valleys, often featuring watercourses and forested areas. The region offers varied terrain, from challenging trails to more accessible paths suitable for different activity levels. These natural monuments contribute to the diverse outdoor landscape of Stüsslingen.
Last updated: June 28, 2026
Highlight • Cave
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Highlight (Segment) • Gorge
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Highlight (Segment) • Trail
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Great cave at the end of the 1000er Stägli. The route in the cave is well marked with arrows.
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The Rünenberg Giessen is 18 meters high. The water cascades over a curved rock face onto a tuff cone.
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The last time I came across this trail was by chance, in ice and snow. I fell on my backside a few times. This time we deliberately hiked uphill, and weather aside, it was far more pleasant.
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Was no longer easily accessible in the meantime, but is now fully accessible again (March 2025)
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Exciting place, also for children. They shouldn't be too small. You climb a bit and should bring good light.
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An extremely wild and romantic valley that requires good sure-footedness.
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From the Sommerau to the Rünenberg and down to Giessen - a tour that never gets boring.
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Heideloch or Heidechuchi is a rock crevice that you can crawl through. Permanently installed iron grips provide the necessary hold. A few meters south of the Heideloch, you will find the Flädermus-Stübli. This cave is about 20 meters long and about 10 meters deep.
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Around Stüsslingen, 'canyons' refer to natural formations such as gorges and valleys, often characterized by watercourses and forested areas. These natural monuments offer varied terrain for exploration.
Yes, the Chrindeltal is a family-friendly gorge. This renatured valley is under cantonal nature conservation and offers a hiking trail connecting the towns of Sommerau and Rünenberg.
For those seeking more challenging routes, the Grotten Trail is an intermediate singletrack with some steps, suitable for experienced bikers or hikers with strong legs. Additionally, the Steep Descent in Solothurn is a challenging trail in a wild and romantic valley, requiring good sure-footedness.
The Sommerau Valley features the Rünenberg Giessen, an 18-meter high waterfall that cascades over a curved rock face onto a tuff cone. The Steinerner Graben Trail also offers an exciting path through a small gorge with water still present in places.
Beyond exploring the gorges, you can find various outdoor activities nearby. There are numerous running trails, gravel biking routes, and road cycling routes around Stüsslingen, catering to different fitness levels and preferences.
For trails like the Steep Descent in Solothurn and the Steinerner Graben Trail, good sure-footedness is highly recommended. The Steinerner Graben Trail can also be slippery in places due to water.
The canyons around Stüsslingen are generally accessible throughout the year. However, for the most pleasant experience, spring and autumn offer mild temperatures and beautiful scenery. Some trails, like the Steep Descent in Solothurn, can be particularly challenging in icy or snowy conditions, so check local weather before your visit.
Yes, the Sommerau Valley features the impressive Rünenberg Giessen, an 18-meter high waterfall. This area is part of a tour from Sommerau to Rünenberg and down to Giessen, offering a scenic experience.
Visitors frequently appreciate the varied terrain, from challenging trails to more accessible paths. The natural beauty, including waterfalls like the Rünenberg Giessen and the wild, romantic valleys, is also highly valued. The komoot community has shared over 20 photos and given more than 25 upvotes across the highlights, reflecting their enjoyment of the area's natural monuments.
Yes, the Grotten Trail is an intermediate singletrack that includes some steps, suitable for experienced bikers or hikers. The Sommerau Valley also offers an intermediate experience with its varied tour, and the Steinerner Graben Trail is another exciting intermediate path.


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