Best lakes in Graubünden, Switzerland's largest and most easterly canton, are set amidst diverse alpine scenery. These bodies of water offer varied experiences, from clear swimming spots to serene hiking destinations. The region's natural beauty and outdoor activity opportunities make its lakes significant attractions for visitors.
Last updated: April 24, 2026
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one of the most beautiful turquoise lakes in Switzerland
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A visit to Arosa is worthwhile at any time of year; in summer the lake is very beautiful to look at, but in winter it is frozen over.
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Beautiful lake which is frozen in winter.
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A beautiful hike through the Flims forest to Il Spir at any time of year
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An interesting destination all year round. 🥰
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Lago Bianco, Bernina Pass at 2234 meters The Lago Bianco is a reservoir at the Bernina Pass and is located in the area of the municipalities of Pontresina and Poschiavo. The lake is located directly at the pass at 2234 meters above sea level. The Lago Bianco is bordered by two dams on its north and south sides and is around three kilometers long and about 800m wide. When filled to its maximum, the depth of the Lago Bianco is over 50 meters. The reservoir on the Bernina Pass is fed by various mountain streams and glacier water, while the Cavagliasch in particular leaves the lake. The whitish, somewhat milky-looking Lago Bianco gets its name (in German "White Lake") from the inflow of sand and glacier water. The Bernina Hospice (Ospizio Bernina) is located on the western shore of Lago Bianco, and the Rhaetian Railway's train line - the Bernina Express - also runs directly along the shore. The Bernina Pass road is also located on the western side, but not directly on the lake shore. In cold winters, the lake can freeze over and in some years the beautiful black ice forms. When the reservoir is then opened by the authorities, nothing stands in the way of ice skating on Lago Bianco. Text / Source: Schweizersee.ch https://www.schweizersee.ch/lago_bianco_pontresina/
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From the small viewing platform at the "mountain station" you have the most beautiful view of the lake.
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Graubünden boasts several lakes with stunning and distinct colors. Lake Cauma is famous for its mesmerizing turquoise, blue, and green waters. Lai da Palpuogna, recognized as one of Switzerland's most beautiful spots, offers idyllic colors. Lagh da Saoseo in Valposchiavo displays a spectacular array of colors from blue to violet, especially after a hike. Lai Blau lives up to its name with an intense blue hue, and Lago Bianco gets its whitish, milky appearance from glacial water.
Yes, several lakes are well-suited for families. Lake Cauma is a popular bathing lake with amenities like a 3-meter diving tower, a restaurant, and a paddling pool for children. Cresta Lake is also family-friendly, offering a natural pool and a restaurant, accessible via a stroller-friendly hiking trail. Lake Staz (Lej da Staz) is another popular family spot, though it can get crowded during peak times.
The lakes in Graubünden are excellent starting points for various outdoor activities. You can find numerous hiking trails, such as those around Lago Bianco or the path to the Source of the Rhine – Lai da Tuma. For more extensive hiking, explore routes like the Val Bregaglia Panoramic Trail or the Bernina Waterfalls loop. The region also offers gravel biking and cycling opportunities, with routes like the Kunkels Pass from Flims or the Chur Rhine Route. You can find more details on these activities in the waterfall hikes, gravel biking, and cycling guides for Graubünden.
Lake Cauma is easily accessible by a funicular. Lago Bianco, located at the Bernina Pass, is directly along the Bernina Express train line, making it very convenient to reach by rail. Lai da Palpuogna is also accessible via an easy 1.7 km hike from the Preda train stop.
Yes, Lake Cauma is a very popular bathing lake, known for its pleasant water temperature and clear waters. Cresta Lake, a spring-fed lake, also features a natural pool with crystal-clear water, ideal for swimming.
The best time to visit largely depends on your desired activities. Summer is ideal for swimming, hiking, and mountain biking, with pleasant temperatures and lush landscapes. However, popular spots like Lake Staz and Lake Cauma can be crowded on weekends and during peak season. Some lakes, like Lago Bianco, can freeze over in cold winters, offering unique experiences like ice skating on black ice.
Absolutely. Many lakes in Graubünden offer stunning viewpoints. For instance, there's a dedicated Panoramic view of Lake Cauma, where you can see the lake's vibrant colors from above. Lago Bianco also provides great views, especially from the Bernina Hospice on its western shore or along the Lago Bianco Lakeside Trail.
Yes, Graubünden is home to several high-alpine lakes. Urdensee is situated at 2,249 meters above sea level, offering a true high-alpine experience surrounded by mountains. Source of the Rhine – Lai da Tuma is another alpine lake, considered the source of the Rhine, located in a high moor area.
The alpine lake Source of the Rhine – Lai da Tuma (also known as Lake Toma or Lag da Toma) is considered the source of the Rhine. It is located in the canton of Graubünden, and a path from Oberalp Pass leads to it, offering views of the high moor area.
Cresta Lake is special for its crystal-clear, spring-fed water, beautifully set amidst dark fir trees. Its entire water volume renews within three days due to constant exchange, ensuring its purity. It's accessible only on foot via a stroller-friendly hiking trail and features a natural pool and a restaurant.
Lake Sils is the largest lake in the canton of Graubünden. Lago Bianco, a reservoir at the Bernina Pass, is also quite large, approximately three kilometers long and 800 meters wide.
Visitors frequently praise the breathtaking alpine scenery and the diverse experiences offered by the lakes. Many appreciate the mesmerizing colors of lakes like Cauma and Palpuogna, the tranquility of the natural settings, and the opportunities for world-class hiking and mountain biking. The clear waters for swimming and the picturesque views from various viewpoints are also highly valued.


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