Best natural monuments around Rhäzüns are found in the municipality of Graubünden, Switzerland. The region features diverse natural landscapes, including pristine river floodplains and unique ecosystems. These sites offer opportunities to observe natural river dynamics and protected shallow moorlands. The area is also known for its historical mineral springs and dramatic geological formations like the Rhine Gorge.
Last updated: June 26, 2026
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The Dreibündenstein in Graubünden is an elevation at 2,156 meters above sea level south of the city of Chur and of the mountain Furggabüel, which lies at 2,174 meters above sea level. They are separated only by a 15-meter high saddle and 500 meters distance. The point is not a mountain peak, but a historical site. It was the sole triple border point of the former Free State of the Three Leagues. The original stone from 1722 is exhibited in the Rätisches Museum Chur. The replacement stone from 1915 bears the three coats of arms of the Three Leagues. The Three Leagues included the Grey League with the judicial community of Rhäzüns, the League of the Ten Jurisdictions from Churwalden, and the League of God's House from Ortenstein Castle.
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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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Mountain hike from Brambrüesch to Dreibündenstein and on to Feldis
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A dream of a view of the Rhine Gorge and little visited.
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Lake Cauma, the Pearl of Flims Called "Lag la Cauma" in Romansh, which means "Lake of Midday Rest," Lake Cauma is the pearl of Flims. Origin This mountain lake was formed as a result of the largest landslide in the Alps, which occurred almost 10,000 years ago. The formation of the lakes is attributed to prehistoric landslides. The water seeped through the porous rockslide masses. However, it can also dissolve the limestone with the help of its carbonic acid. Over time, it created an underground passage. A deeper, impermeable clay layer ensures that the water does not completely seep into the ground. Text / Source: Flims Laax Falera https://www.caumasee.ch/geschichte/
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“Il Spir” viewing platform From the Il Spir viewing platform, you can marvel at the impressive Rhine Gorge / Ruinaulta!
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Ruinaulta Rhine Gorge The Ruinaulta or Rhine Gorge is a gorge up to 400 meters deep and around 13 kilometers long in the Vorderrhein between Ilanz and the mouth of the Hinterrhein near Reichenau in the canton of Graubünden in Switzerland. The Romansh name 'Ruinaulta' is composed of the two words Ruina (scree slope, quarry) and aulta (high). The Ruinaulta was created after the Flims landslide almost 10,000 years ago. At that time, over 10 billion cubic meters of rock broke off between the Flimserstein and the Piz Grisch and buried the Vorderrheintal between today's villages of Castrisch and Reichenau under a mass of rubble several hundred meters thick. Since the Vorderrhein could no longer drain, a lake was dammed over a length of around 25 km. Over time, the river cut deep into the landslide masses and the resulting lake was able to drain completely. What remained was the Ruinaulta with its steep limestone rubble cliffs in impressive erosion formations. Text/Source: Wikipedia https://de.wikipedia.org/wiki/Ruinaulta
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Dreibündenstein - a piece of history The Dreibündenstein is a monument to the former border point of the Free State of the Three Leagues. Until 1798, the borders of the "Gotteshausbund", "Grauer Bund" and "Zehngerichtebund" leagues met at this point. Each side of the stone bears a coat of arms of these three Rhaetian leagues. At the same time, the Dreibündenstein commemorates the freedom fighters of Graubünden. Text / Source: EHL Group, Route de Cojonnex 18, 1000 Lausanne 25 https://hospitalityinsights.ehl.edu/de/graubuenden-entdecken-dreibuendenstein#:~:text=The%20Dreib%C3%BCndenstein%20is%20a%20monument%20for%C3%BCr%20the%20former,stone%20stone%20bears%20a%20coat%20of%20these%20three%20Roman%20federations.
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Visitors frequently enjoy the breathtaking views from the Il Spir Viewing Platform – Rhine Gorge, which offers a 180-degree panorama of the 'Swiss Grand Canyon'. Another favorite is Cresta Lake, known for its crystal-clear, spring-fed waters nestled among fir trees.
The region offers diverse natural features. You can explore the pristine
Rheinauen (Rhine Floodplains) of Rhäzüns
, one of the last natural river landscapes along the Alpine Rhine, featuring dynamic changes, sandy banks, and rich biodiversity. TheNature Reserve Weihermühle
is a nationally important shallow moorland, home to rare species like the dormouse and various orchids. Additionally, Rhäzüns is known for itsMineral Springs
, which have been exploited since 1850 for their rich and balanced mineralization.Yes, the Dreibündenstein Monument is a significant historical and natural landmark. Located at 2,156 meters, it once marked the triple border point of the former Free State of the Three Leagues, including the Grey League with Rhäzüns. The monument offers magnificent panoramic views and connects to the region's past.
Absolutely. Cresta Lake is very family-friendly, with a stroller-friendly hiking trail leading to it and a restaurant on site. Lake Cauma, also known as the 'Pearl of Flims,' is another excellent choice, offering facilities and a beach area. The Il Spir Viewing Platform is accessible and provides a memorable experience for all ages.
Yes, both Cresta Lake and Lake Cauma are popular spots for swimming. Cresta Lake's entire volume of water renews within three days, ensuring very clear water. Lake Cauma is known for its beautiful turquoise waters and beach facilities, though it can get crowded in summer.
The
Nature Reserve Weihermühle
is a haven for biodiversity, home to rare species such as the dormouse, numerous orchid varieties, and sundew, a local carnivorous plant. TheRheinauen (Rhine Floodplains)
also support rich biodiversity, offering opportunities to observe various bird species and other wildlife in a dynamic river ecosystem.The natural monuments are beautiful year-round. Spring and summer are ideal for hiking, swimming, and enjoying the lush greenery of the floodplains and moorlands. Autumn offers stunning foliage, especially around the lakes and gorges. Winter provides a serene, often snow-covered landscape, with opportunities for snowshoeing around areas like the Dreibündenstein.
Yes, the Dreibündenstein Monument is a great destination for snowshoe hikers, connecting three different winter sports areas with varied circular hikes. Lake Cauma also transforms into a peaceful haven in winter, perfect for quiet walks and photography.
Many natural monuments are integrated into extensive trail networks. For instance, you can find numerous mountain hikes around the region, including challenging routes like the Pinut Via Ferrata. The Rheinauen also offer pleasant cycling or hiking routes along the river. You can explore more options on the Mountain Hikes around Rhäzüns guide.
The Rhäzüns area provides excellent cycling routes. The Rheinauen are perfect for leisurely rides along the river, immersing you in the natural landscape. For more challenging rides, there are various road cycling routes that traverse the region, offering scenic views. Discover more details on the Road Cycling Routes around Rhäzüns guide.
Visitors consistently praise the breathtaking views, especially from viewpoints like Il Spir and View of the Ruinaulta. The crystal-clear waters of Cresta Lake are also highly appreciated for swimming and their fairytale-like setting. The historical significance of sites like the Dreibündenstein Monument combined with panoramic views also leaves a lasting impression.
You'll find amenities near several natural monuments. Cresta Lake has a restaurant and kiosk, and Lake Cauma also offers restaurant facilities. For broader options, the nearby villages and towns provide various cafes, pubs, and accommodation choices.


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