Best natural monuments around Ilanz are found in a region of Switzerland known for its natural landscapes and geological features. Ilanz, situated on the Rhine, offers access to dramatic gorges and alpine lakes. The area's natural monuments showcase unique geological formations, including those resulting from the ancient Flims landslide. Visitors can explore a variety of natural attractions, from viewpoints overlooking deep canyons to distinctive lakes.
Last updated: June 24, 2026
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Although it has been quite warm for November for days, the sun doesn't seem to shine all day. The fog and frost on the plants look very mystical.
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This gorge is incredibly beautiful and diverse
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The special thing about Lag Prau Tuleritg is that it dries out at the end of summer and only fills up again the following spring when the snow melts. So there is not always water here, but when there is, it makes the lake a true idyll.
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The platform was designed by the Chur architect Corinna Menn on behalf of the municipality of Flims and inaugurated in September 2006. It consists of a single pillar that is anchored in two places. The pillar, held back by a traction cable, protrudes into the gorge. On the pillar lies the triangular platform made of larch wood, which gives the structure the shape of a swift. (Source: https://de.wikipedia.org/wiki/Il_spir)
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Very impressive watercourse, which rages down very steep terrain in places. The moisture from the spray is very welcome in summer 👍🏻.
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The water of the Flem rushes picturesquely through the gorge - simply wonderful!
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A dream of a view of the Rhine Gorge and little visited.
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Lag Prau Tuleritg The Lag Prau Tuleritg is an annually recurring temporary lake of a complex hydrological system in the landslide debris near Flims The lake dries up completely at the end of summer. Every early summer when the snow begins to melt in the mountains, more water flows in the underground system and the resulting overflowing Lag Prau Pulté supplies the lake near Tuleritg with water via a stream. The Prau Tuleritg Lake lies in a terrain chamber west of Lake Cauma. Obviously, the lake feeds the inflowless Lake Cauma, which is about 18 meters below, via an underground path. Lake Cauma changes its level by up to 6 meters. Text/Source: Wikipedia https://de.wikipedia.org/wiki/Lag_Prau_Tuleritg
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For breathtaking panoramic views of the Rhine Gorge, often called the "Swiss Grand Canyon," visit the Il Spir Viewing Platform. This unique triangular platform extends into the gorge, offering expansive and unobstructed vistas. Another excellent spot is the View of the Ruinaulta (Rhine Gorge), which provides scenic views along a route with benches for rest.
Yes, the region is known for its unique geological formations. You can explore Lag Prau Pulté, a fascinating lake that has no surface inflow and drains completely in the fall, refilling in spring through an underground inflow during snowmelt. Its water then feeds Lake Prau Tuleritg, another temporary lake that also dries up by the end of summer.
For families, the tranquil Lake Cauma is an excellent choice. Known as the "Pearl of Flims," it offers clear waters and a beautiful setting. Another option is Crestasee, a pristine alpine lake with crystal-clear, drinkable waters, perfect for a relaxing day with picnic areas and swimming. It's accessible via a stroller-friendly hiking trail.
The area around Ilanz offers a variety of outdoor activities. You can enjoy hiking, river-rafting through the Rhine Gorge, or swimming in lakes like Crestasee. For more structured activities, there are numerous routes for road cycling, running, and mountain hiking. You can find detailed routes and guides for Road Cycling, Running, and Mountain Hikes in the region.
Yes, the Trutg dil Flem Water Trail offers a unique experience. This award-winning trail follows the Flem stream, showcasing diverse gorge landscapes, bizarre rock formations, whirlpools, and waterfalls. It features seven distinct bridges, some boldly designed, allowing visitors to appreciate the powerful force of water and natural beauty.
The best time to visit depends on your preferred activities. For hiking and swimming in the lakes, late spring to early autumn (May to October) is ideal. During spring, you can witness the temporary lakes like Lag Prau Pulté and Lake Prau Tuleritg refilling with snowmelt. Winter offers a different, tranquil beauty, with some viewpoints like the View of the Ruinaulta (Rhine Gorge) being particularly beautiful even in snowy conditions.
The spectacular Rhine Gorge, also known as Ruinaulta, was formed approximately 9,500 years ago by the enormous Flims landslide. Over 10 billion cubic meters of rock broke off, burying the Vorderrheintal. The Rhine River then carved its way through this debris, creating the dramatic landscape of white cliffs, untamed river sections, and rich forests that we see today.
Yes, you can swim in some of the lakes. Crestasee is known for its crystal-clear, drinkable waters and is a popular spot for swimming. Lake Cauma also offers swimming opportunities. However, lakes like Lake Prau Tuleritg are not suitable for swimming due to difficult access and their temporary nature.
The Il Spir Viewing Platform is special for its unique architectural design. Designed by Corinna Menn, the triangular larch wood platform extends into the Rhine Gorge, resembling a swift. It provides expansive, unobstructed, and safe panoramic views of the "Swiss Grand Canyon," making it an ideal spot for photography and enjoying the dramatic landscape.
Yes, for an easier option, the path leading to Crestasee from the Trin Mulin parking lot is a stroller-friendly hiking trail. While the Rhine Gorge itself offers more challenging routes, many viewpoints, including the Il Spir Viewing Platform, are accessible to a wide range of visitors, ensuring both convenience and safety.
The Rhine Gorge is a significant ecological area, home to rare flora and endangered bird species. The extensive forests and untamed river sections provide diverse habitats. The white cliffs, composed of rock debris, also support unique plant life adapted to the specific geological conditions.


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