Best canyons around Gals feature a diverse landscape of deep gorges, historical caves, and cascading waterfalls. The region is characterized by its natural monuments and extensive trail networks, often winding through dense forests. Visitors can explore areas with significant geological formations and unique natural features. These locations offer opportunities for hiking and discovering both natural beauty and historical sites.
Last updated: June 26, 2026
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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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Steep forest path on the ascent to the Chasseeral
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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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Very pretty gorge to do with family, with friends. Accessible with an average physical level. So, nice little walk that could be followed by a navigation on Lake Bienne.
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Here you can still get a glimpse of the original world. A worthwhile reserve
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The region around Gals offers several notable natural attractions. The Twannbach Gorge is highly popular, featuring a magnificent trail with walkways and galleries carved into cliffs, offering views of waterfalls and pools. Another impressive site is the Combe Biosse Gorge, known for its wild and romantic paths through picturesque forests with massive boulders and a bubbling stream.
Yes, several spots are great for families. The Twannbach Gorge offers an accessible trail that children enjoy, though it's important to be careful when wet as stones can be slippery. The Grey Rock Caves are also a fantastic adventure for kids, who love exploring the man-made tunnels and corridors. Remember to bring a flashlight for the caves!
The canyons around Gals are rich in diverse natural features. You'll encounter deep gorges, cascading waterfalls, and natural pools, particularly at Pilouvi Waterfalls and Twannbach Gorge. The area also boasts dense forests, such as those found in the Bernese Jura, providing a lush, green environment.
Yes, the Grey Rock Caves are a significant historical site. These man-made caves were dug into sandstone between 1916 and 1917 for defense during the First World War. Exploring them offers a glimpse into the region's past. Additionally, the Pilouvi Waterfalls area has local legends of witches bathing in its sparkling waters, adding a mystical charm.
Many trails, such as the Twannbach Gorge, are closed during winter until Easter due to conditions. Therefore, the spring, summer, and autumn months are generally the best times to visit, allowing full access to the trails and enjoying the natural beauty in milder weather.
For exploring the canyons, comfortable and sturdy footwear is essential, especially since paths can be slippery when wet. If you plan to visit the Grey Rock Caves, a flashlight is highly recommended for navigating the tunnels. A camera is also a great idea to capture the breathtaking views and waterfalls.
While popular spots like Twannbach Gorge can attract visitors, exploring areas like the Combe Biosse Gorge or the trails leading to Pilouvi Waterfalls might offer a more serene experience, especially during off-peak hours or weekdays. These areas provide a chance to immerse yourself in nature away from larger crowds.
The forested and natural monument areas around Gals, such as those surrounding the Pilouvi Waterfalls and Twannbach Gorge, are home to various species. While specific wildlife is not detailed, you can expect to see typical forest inhabitants, including birds and small mammals, thriving in these protected natural environments.
Many of the trails through the gorges, such as parts of the Twannbach Gorge, are generally easy to walk, making them suitable for beginners. However, always be mindful of conditions, as paths can become slippery. The area also offers pleasant walks through forests that are less strenuous.
Beyond exploring the canyons, the region around Gals offers a variety of outdoor activities. You can find numerous MTB trails, cycling routes, and gravel biking paths. These routes range from easy to difficult, allowing you to explore the diverse landscapes by bike.
The Grey Rock Caves are unique because they are man-made, dug into sandstone between 1916 and 1917 for defensive purposes during the First World War. Today, they offer an adventurous exploration opportunity, especially for children, through their hand-dug hells and corridors, complete with various fireplaces.
For impressive waterfalls, the Pilouvi Waterfalls are a must-see. Nestled among trees in the Bernese Jura forest, this enchanting place features several waterfalls cascading into natural pools. The Twannbach Gorge also boasts numerous small and large waterfalls along its trail.
Yes, for experienced hikers looking for a challenge, the Combe Biosse Gorge offers a wild and romantic path that includes steep forest sections, particularly on the ascent towards Chasseral. This trail is categorized as challenging and provides a more demanding hiking experience.


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