Best lakes around Disentis/Mustér offer diverse experiences in a region known for its natural beauty. This area, situated in the Swiss Alps, features a landscape of jagged peaks and numerous mountain lakes. Disentis/Mustér is a destination for those seeking outdoor activities, with opportunities for hiking and enjoying clear waters. The region provides a variety of natural features, from high-altitude reservoirs to accessible bathing lakes.
Last updated: May 11, 2026
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Cold lake great for cooling feet and a great place to take a break with a view of the glacier and the mountains
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The Muttsee (formerly Mutten See, Muttensee) is a reservoir on the Muttenalp in the southernmost part of the municipality of Glarus South in the canton of Glarus in Switzerland.
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In 1957, the newly founded Kraftwerke Linth-Limmern AG (KLL) began to realize the power plants that had been planned since the beginning of the 1940s by the Nordostschweizerische Kraftwerke (NOK), into which the Muttensee was to be integrated.
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Until 1917, the official name was "Mutten See", then the spelling "Muttensee" appeared. From 1963, the spelling "Muttsee" appeared. The Hühnerbühl is now known in dialect as Hüenderbüel.[3] The kidney-shaped mountain lake was about 1000 meters long and 400 to 500 meters wide. On the Muttenalp plateau known as Hühnerbühl, it covered an area of about 42 hectares. The height of the lake surface was given as 2442 m until 1899, and 2448 m from 1900 to 1962. In the southeast, the lake was drained by a stream, which after a few hundred meters, at about 2400 m, disappeared into the Muttsee cave in the karst subsoil of the Muttenalp.[6] A little to the south, from about 2450 m, the Muttenbach collected the snow water from the Latten via various small tributaries.[5] It led this into the Limmernbach via the Mörthal and the Ochsenblanken.
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The lake is registered in the cantonal landscape register as a landscape of regional importance.[4] In the karst area of the Muttenalp there are - in addition to the Muttsee cave and the Muttsee hut - various other small lakes, most of them distributed southwest of the Muttsee over the Hüenderbüel. The largest neighbor, the Ober See, lies north of the Muttsee at 2474 m. It is the only lake on the Muttenalp that is connected to the Muttsee via its outflow.
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The lake is located at the crossing from Linthal-Tierfehd over the Kistenpass to Brigels. It lies in the 2.95 square kilometer basin of the Muttenalp above the Hüenderbüel. The alp is surrounded by high mountains such as Nüschenstock (2892 m) in the west, Rüchi (2849 m) in the northwest, Hinter Sulzhorn (2737 m) in the northeast, Ruchi (3105 m) in the east and Muttenstock (3088 m) in the southeast. The arena opens to the southwest. It drops steeply over the Muttenwand into the Limmerental and over the Muttenchopf (2482 m) to the Limmerensee.
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As part of significant expansion measures for the power plants between 2009 and 2017, the dam built in 1963 was replaced by a concrete dam wall. This has a length of 1054 meters, making it the longest dam wall in Switzerland. The water level reaches a height of 2474 m when fully filled. This makes the Muttsee the highest reservoir in Switzerland, with a capacity of more than 10 million m³. The highest reservoir under the supervision of the federal authorities is the Viderjoch reservoir in the Silvretta Arena, which lies at 2664 m.[1][2] Since 2021, the largest alpine photovoltaic system in Switzerland has been under construction on the dam wall.
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The original mountain lake has been integrated into the concept of energy generation through hydropower of the Linth-Limmern power plants since 1968.
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The region offers a variety of captivating lakes. Visitors frequently enjoy the Muttsee Reservoir, known as Switzerland's highest reservoir with its impressive 1054-meter dam wall. Another favorite is Lag Serein, praised for its clear, pure water and picturesque setting. Lake Oberalp, located at Oberalp Pass, is also a popular choice and serves as a starting point for hikes.
Yes, several lakes are ideal for families. Bathing Lake Fontanivas, located directly in Disentis, features a water playground and surrounding meadows for relaxation. Lag da Claus in Sedrun-Surrein also offers a sandy beach for children and wooden loungers for parents, making it a great spot for a family outing.
Absolutely. Bathing Lake Fontanivas and Lag da Claus Sedrun are natural bathing lakes perfect for a refreshing dip, with water temperatures typically below 20 degrees Celsius in summer. For the more adventurous, Lag Serein is known for its cold, clear water, attracting those who enjoy a brisk swim.
The lakes around Disentis/Mustér offer diverse natural beauty. You'll find high-alpine settings with jagged peaks reflecting in still waters, as seen at Lake Oberalp. Glacier lakes like Griesslisee provide dramatic scenery at the foot of the Clariden north face. Lag da Claus Sedrun, depending on the season, features blooming water lilies, adding to its idyllic charm.
Yes, the lakes are excellent starting points for hikes. From Lake Oberalp, you can embark on a trail to Lake Tomasee, considered the source of the Rhine. For more challenging routes, the area around Griesslisee offers alpine trails, though they can be poorly marked and involve scree. You can find various hiking routes in the region, including those around the lakes, by exploring the MTB Trails around Disentis/Mustér guide, which also lists general outdoor routes.
Near Lake Oberalp at the Oberalp Pass, you'll find the world's highest lighthouse, a replica of the one that once stood at the mouth of the Rhine. The Muttsee Reservoir is notable for its 1054-meter long dam wall, the longest in Switzerland. Griesslisee is situated near the distinctive rock formation known as 'Tyyfelsfriedhof'.
Yes, Lag da Claus Sedrun is designed to be handicapped-accessible, making it a welcoming spot for visitors with mobility needs to enjoy the lake and its surroundings.
You'll find amenities near several lakes. At Bathing Lake Fontanivas, a nearby campground restaurant offers ice cream. Lag da Claus Sedrun features a kiosk with a large panoramic terrace for snacks and drinks. Near Lake Oberalp, you can enjoy coffee and cake on a terrace overlooking the water, or visit the Badushütte for relaxation after a short ascent.
The region around Disentis/Mustér offers diverse outdoor activities. You can explore various cycling routes, including challenging loops like the 'Oberalp Pass – View of Lake Oberalp' from Acla da Fontauna, as detailed in the Cycling around Disentis/Mustér guide. Gravel biking and mountain biking are also popular, with routes like 'Runda Claustra' and 'Best of Disentis Sedrun' available in the Gravel biking around Disentis/Mustér and MTB Trails around Disentis/Mustér guides.
Visitors consistently praise the stunning natural beauty and the refreshing experience the lakes offer. Many appreciate the clear, pure water of lakes like Lag Serein and the serene landscapes, often with jagged peaks reflected in the water, as noted at Lake Oberalp. The diverse opportunities for swimming, hiking, and simply relaxing by the water are also highly valued.
The best time to visit is generally during the warmer months. Bathing Lake Fontanivas, for example, is open from mid-May to mid-October. This period allows for swimming, hiking, and enjoying the full range of outdoor activities before the alpine winter sets in.
Yes, anglers can fish in Lake Oberalp. It's a popular spot for those looking to combine a relaxing day by the water with some fishing.


Still not found your perfect lake around Disentis/Mustér? Check out the guides of these regions to see even more beautiful places.