Lakes around Tujetsch, a municipality in Switzerland's Surselva Region, offer diverse natural features within an alpine landscape. This area is known for its high-altitude lakes, some of which are significant natural landmarks. Tujetsch provides opportunities for exploring the source of a major European river and enjoying various outdoor activities. The region's geography includes mountains, valleys, and bodies of water that contribute to its natural appeal.
Last updated: April 24, 2026
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Scenic pass that is opened all year round (closes at 6pm in winter). There is hardly any traffic which makes cycling very nice and plenty of opportunities to take pictures. We crossed the pass in early May when there was still plenty of snow up there. The change in scenery where it was all green at Disentis and slowly turning white as we climbed higher... and very quickly turned to green as we rolled down on the south side to Biasca was breathtaking.
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The Lucomagno is one of the most famous Alpine passes in Switzerland. It is located between the cantons of Ticino and Grisons, at an altitude of 1,926 meters. The name seems to derive from the Latin "locus magnus", meaning "large, open place". It is often tackled in the professional race of the Tour of Switzerland.
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When the lake is still, the mountain range is reflected in it. Beautiful.
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At the Oberalp Pass at 2,044 meters, not only is the obligatory "passport photo" waiting at the Oberalp Pass sign, but also the only lighthouse in the Alps. It comes from Rotterdam, where the original lighthouse can be found in the Maritime Museum, which once stood in Hoek van Holland, at the mouth of the Rhine into the North Sea - thus completing the circle from the source to the mouth.
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The Oberalpsee, located at the top of the pass between Sedrun and Andermatt, offers a peaceful retreat for amateur fishermen, who can obtain licenses at the Piz Calmot restaurant. Enthusiasts can enjoy fishing moments at sunrise in a peaceful atmosphere. For hikers, a walk to the western end of the lake reveals a small dam used for electricity generation. For a complete experience, the hike can continue to Nätschen, followed by a return by train, offering a lovely way to explore this picturesque mountain region.
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The Lukmanier Pass is located at almost 2,000 m above sea level between the Swiss cantons of Ticino and Grisons. It can be reached by crossing the Blenio valley which is the sunniest of the Swiss ones, therefore called "Valle del Sole".
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The Lukmanier Pass is located at almost 2,000 m above sea level between the Swiss cantons of Ticino and Grisons. It can be reached by crossing the Blenio valley which is the sunniest of the Swiss ones, therefore called "Valle del Sole".
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The Oberalp pass connects the cantons of Uri and Grisons. The pass, which is located at 2,046 meters above sea level, has been open to vehicles since the mid-19th century.
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The region boasts several lakes with distinct characteristics. Source of the Rhine – Lai da Tuma is notable as the source of the Rhine River, nestled high in the mountains. Lake Oberalp is known for its scenic reflections of the surrounding mountains and a unique lighthouse. Arnisee (Lake Arni) is a beautiful reservoir used for energy production, offering a pleasant walk and picnic areas.
Yes, several lakes offer family-friendly experiences. Lag Claus Surrein, mentioned in regional research, is a bathing lake with a restaurant, a raft for children, and play equipment. Lake Oberalp is suitable for fishing and offers a cable car to Schneehüenerstock for further exploration. Arnisee (Lake Arni) features a large shady picnic area, ideal for families.
Many lakes in the Tujetsch area, such as Source of the Rhine – Lai da Tuma and Lake Oberalp, are accessible via the Oberalp Pass. Public transport options, including trains and buses, connect to the Oberalp Pass, serving as a starting point for hikes to these lakes. For Arnisee, cable cars from Gurtnellen/Amsteg provide access.
The region offers diverse hiking opportunities. From the Oberalp Pass, you can embark on trails to Source of the Rhine – Lai da Tuma, with options for varying difficulty. The walk around Arnisee (Lake Arni) is also a worthwhile and generally easier option. For more challenging routes, consider exploring the trails around Lukmanier Pass, which also features a lake.
Yes, the area around Tujetsch is popular for cycling and mountain biking. The Rhine bike path begins near Tomasee, offering a route to follow the river's course. You can find various cycling routes, including those around the Oberalp Pass, by checking the Cycling around Tujetsch guide. For mountain biking, routes like the 'Curnera Bike' or 'Lai da Nalps – Lag da Claus loop' are available in the MTB Trails around Tujetsch guide.
The best time to visit is generally from mid-May to the end of October, when the weather is most favorable and facilities like the bathing lake at Lag Claus Surrein are open. During this period, hiking trails are typically clear of snow, and the alpine landscapes are vibrant. Some lakes, especially those at higher altitudes like Source of the Rhine – Lai da Tuma, are best visited in the summer months.
Yes, there are dining options available. Lag Claus Surrein has an accompanying restaurant with panoramic views. Arnisee (Lake Arni) features two small restaurants. Additionally, the Oberalp Pass area, a common starting point for lake excursions, offers facilities where you can enjoy coffee and cake. The nearby town of Chamut also provides amenities.
Many trails in the Swiss Alps, including those around Tujetsch, are generally dog-friendly. For example, the path from the Oberalp Pass to Source of the Rhine – Lai da Tuma is suitable for dogs. However, it's always advisable to keep dogs on a leash, especially in nature reserves or areas with livestock, and to check local regulations for specific trails or protected areas.
The lighthouse at Lake Oberalp is a unique landmark. It's a smaller replica of the lighthouse that once stood at the mouth of the Rhine in Hoek van Holland, completing the symbolic journey from the Rhine's source at Lake Toma to its mouth in the North Sea. It stands at 2,044 meters, making it one of the highest lighthouses in the world.
Yes, the region includes reservoirs that are used for energy production. Arnisee (Lake Arni) is a prominent example, offering scenic views and recreational opportunities despite its industrial purpose. Other significant bodies of water in the broader Surselva district, such as Lai da Curnera and Lai da Nalps, are also prominent, contributing to the region's natural beauty and hydropower.
Visitors frequently praise the stunning alpine landscapes and the fresh mountain air. The opportunity to visit the source of the Rhine at Source of the Rhine – Lai da Tuma is a major draw. Many appreciate the tranquility and the chance to connect with nature, whether through hiking, cycling, or simply enjoying the panoramic views from spots like Lag Claus Surrein or Lake Oberalp.


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