Canyons around Oberhelfenschwil present a diverse natural landscape, characterized by deep gorges and river valleys. The region features more than 15 distinct gorges, providing opportunities for exploration. These natural formations often include accessible pathways, such as covered wooden walkways, that guide visitors through scenic areas. The area is known for its varied terrain, from romantic side valleys to historical sites.
Last updated: October 14, 2026
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The Äulischlucht near Lichtensteig is an impressive natural jewel with steep rock faces, clear water, and a small waterfall. The path leads mostly through the forest and is sometimes narrow and tight between the rocks. A rope aids safe progress in one short section. The varied route offers pleasant shade on warm days and invites you to linger with its beautiful views. Note: Due to the current drought and water shortage, access to the water is currently prohibited.
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The Trempel hydroelectric power plant uses the natural drop in the Thur river for environmentally friendly electricity production. The plant was originally built in the 1920s and extensively modernized in 2007. Today, the run-of-river power plant with an output of 1.8 MW generates around 8 million kWh of electricity annually – enough for about 2,000 households. Directly by the power plant, an impressive section of the Thur river passes by with a small gorge, providing an exciting insight into the use of renewable energy.
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Very long, covered stairs, a bit strenuous uphill with a bike.
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🌿 The Äuli Gorge in Lichtensteig – pure nature in Toggenburg! Turquoise water, mossy rocks, and mystical legends like the Äuli Dog 👻 await you. The perfect place to dive, hike, or simply marvel.
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Details of the Trempel power plant, newly built in 2007: Client: Kraftwerk Trempel AG CH-9643 Krummenau SG Project management: HYDRO-SOLAR AG, Niederdorf BL Start of construction: April 10, 2007 Commissioning: November 5, 2007 Net head: 24.3 m Concession water volume: 8 m3/s Installed capacity: 1,800 kW Electricity production: approx. 8 million kWh (2,000 households) Turbine type: 2 x Francis spiral turbines Generators: 2 x Hitzinger synchronous 900 kW capacity Transformer: 2,000 kVA
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Äulischlucht in the Felsental. Incredibly beautiful detour into a grotesquely narrow rocky gorge with the Thur flowing through it, with a beautiful waterfall coming from the side.
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Impressive contemporary witness to how small power plants used to be built.
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A beautiful path in varied nature with an old power plant.
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The Wissbach Gorge Trail and the Wissbach Gorge and Historic Power Plant are both excellent choices for families. They feature covered wooden walkways that guide hikers safely through the gorge, making them accessible and enjoyable for all ages. The Giessenfall Waterfall also offers family-friendly access to an impressive waterfall and a small bathing area.
You'll find a diverse range of natural features, including wildly romantic side valleys, dense forests, and flowing rivers. Many gorges, like the Wissbach Gorge Trail, feature unique covered wooden walkways. You can also discover impressive waterfalls, such as the Giessenfall Waterfall, and enjoy picturesque viewpoints along the trails.
Yes, the Wissbach Gorge and Historic Power Plant combines natural beauty with historical interest. Visitors can explore the wild and romantic side valley while also encountering an old power plant, adding a unique historical dimension to the experience.
Yes, some gorges offer opportunities for swimming and barbecuing. The Wissbach Gorge Trail is suggested as an ideal spot for a warm summer day, with visitors encouraged to bring a swimming costume. The Wissbach Gorge and Historic Power Plant has numerous barbecue and rest stops along the river. Additionally, the Giessenfall Waterfall features a small bathing area and a picnic spot with a fireplace.
The gorges are particularly enjoyable during warm summer days, as suggested for the Wissbach Gorge Trail, which offers opportunities for cooling off. However, the natural beauty can be appreciated in various seasons, though some paths, like those in Libinger Gorge, can become slippery and challenging when wet or covered with leaves.
Difficulty levels vary. The Wissbach Gorge Trail and Wissbach Gorge and Historic Power Plant are generally accessible, with covered wooden walkways. The Giessenfall Waterfall involves a steep and narrow staircase, making it an intermediate to challenging experience. The Äulischlucht Gorge is rated intermediate, while the Libinger Gorge is considered challenging due to steep, potentially slippery paths.
Beyond exploring the gorges themselves, the region around Oberhelfenschwil offers a variety of outdoor activities. You can find numerous hiking routes, including easy and moderate trails like the 'View of Geissbergweg' or the 'Neutoggenburg Castle Ruins' loop. For cyclists, there are road cycling routes and mountain biking trails suitable for various skill levels.
Yes, many gorges feature dedicated hiking paths. The Wissbach Gorge Trail is a prime example, with its covered wooden walkway. The Wissbach Gorge and Historic Power Plant also offers beautiful narrow forest trails along the river. For more hiking options in the broader area, you can explore the hiking guide for Oberhelfenschwil.
Visitors frequently praise the wild and romantic atmosphere of the gorges, such as the Wissbach Gorge, and the accessibility provided by features like covered wooden walkways. The presence of barbecue and rest stops along rivers, as found in the Wissbach Gorge and Historic Power Plant, is also highly appreciated. Many enjoy the opportunity to relax, bathe, and grill by the water, especially in places like the Äulischlucht Gorge.
While the Wissbach Gorge is well-known, the Äulischlucht Gorge offers a wonderful piece of nature along the Thur river, inviting visitors to stay, bathe, and grill. The Libinger Gorge, with its rustic bridges and steep paths, provides a more challenging and secluded experience for those seeking adventure.
Given the varied terrain, sturdy footwear is recommended, especially for gorges with steep or potentially slippery paths like the Libinger Gorge or the trail to Giessenfall Waterfall. For warm summer days, bringing a swimming costume is suggested for places like the Wissbach Gorge if you plan to cool off in the water. If you intend to barbecue, remember to bring your own supplies for designated rest stops.


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