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Eastern Switzerland

Appenzell Innerrhoden

Top 19 Lakes in Appenzell Innerrhoden

Best lakes in Appenzell Innerrhoden are found within a canton renowned for its alpine landscapes and the picturesque Alpstein range. This region offers a blend of natural beauty and hiking opportunities. The area features several mountain lakes nestled amidst impressive peaks and lush pastures.

Best lakes in Appenzell Innerrhoden

  • The most popular lakes is Seealpsee, a lake known for its crystal-clear water and reflection of surrounding mountain peaks. It is one of the most popular excursion destinations in the…

Last updated: April 23, 2026

Seealpsee

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Beautiful mountain lake in the middle of the Alpstein, with a panorama that couldn't have been created better on the computer. Free-roaming cows, bright green sparkling water, cheese dairy, alphorn players... what more could you want?

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Fählensee

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The Fählensee is the third largest mountain lake in the canton of Appenzell and is located in a very narrow valley between the Bollenwees mountain inn and the Zwingli Pass, embedded between the Hundsteingrat and Roslen-Saxer-First. Just beautiful. Highly recommended!

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Bollenwees Mountain Inn at Fälensee

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The Bollenwees mountain inn is located directly on the idyllic Fählensee in the middle of a breathtaking mountain world.

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Lake Sämtiser

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Sämtisersee at 1200 meters
As with Fählensee, there is no outflow to be seen here. The water from both lakes flows underground and reappears in the Rhine Valley. Outflow or …

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There is no all-round view from the marked position! However, if you hike along the path, there are excellent views overall (somewhat north and south): of the Hoher Kasten massif …

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Swimming area at Seealpsee

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The water is very fresh and crystal clear.

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Forstseeli

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Beautiful secluded lake with fire pit. Ideal for a lunch break when hiking.

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Sämtisersee / A karst lake
The picturesque Sämtisersee is located above Brülisau in the municipality of Rüte in the canton of Appenzell Innerrhoden. The Appenzell mountain lake is located at …

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Stiefel Trail

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Short ascent along the rock to Fählensee.

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Forest trail above the lake

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Really nice. Partly like a fairytale forest, everything covered with moss.

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Tamara (unterwegs)

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Thomas
September 9, 2025, View of Sämtisersee and Alpstein Mountains

Mega view, all along the ridge

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Description: A relatively easy trail with a few sections that require caution, both during the ascent and the descent. It’s a nice route for those who enjoy moderate hiking without technical difficulties, but attention is needed in some steeper or uneven parts. Ideal for a short adventure close to nature. Why I recommend it: This route is perfect for beginners or casual hikers who want a bit of challenge without being overwhelmed. The views are rewarding, and the trail offers a nice balance between ease and small moments of focus.

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There is also a good information board there and perhaps a view of the lake.

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Just walk up and see for yourself...

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Paul
October 27, 2024, Sämtisersee

Sämtisersee, Alpstein region The picturesque Sämtisersee is located above Brülisau in the municipality of Rüte in the canton of Appenzell Innerrhoden. The Appenzell mountain lake is located at the foot of the Hoher Kasten in the Alpstein region at an altitude of around 1200 meters above sea level. The Seealpsee and the Fälensee, the other two larger lakes in the Alpstein, are each about three kilometers (as the crow flies) to the southwest. The Sämtisersee is fed by various streams, especially the Sämtiserbach. Text / Source: schweizersee.ch https://www.schweizersee.ch/saemtisersee/

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Paul
October 27, 2024, Sämtisersee

Sämtisersee at 1200 meters As with Fählensee, there is no outflow to be seen here. The water from both lakes flows underground and reappears in the Rhine Valley. Outflow or not, enjoy a refreshing swim! The water level fluctuates greatly, which is why Sämtisersee almost dries out in very hot summers. Text / Source: Appenzellerland Tourism https://www.appenzell.ch/de/alpstein/perlen-des-alpsteins/saemtisersee.html

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Be sure to visit when the weather is nice. Then the colors really come into their own. 👍

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Idyllic Fortseeli in the forest. Can be reached by bike from the Resspass or from Eggerstanden.

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Frequently Asked Questions

Which lakes in Appenzell Innerrhoden are best for swimming?

For swimming, Seealpsee is a popular choice, especially in midsummer when water temperatures can reach up to 15 degrees Celsius. It even has a dedicated swimming area. Fählensee and Sämtisersee also offer refreshing cold-water swims, though Fählensee is known for its clear, turquoise waters, and Sämtisersee's water levels can fluctuate.

Are there family-friendly lakes or activities in Appenzell Innerrhoden?

Yes, Seealpsee is highly recommended for families due to its relatively easy accessibility and activities like rowing boat rentals. The swimming area at Seealpsee is also family-friendly. Additionally, Forstseeli is a secluded, family-friendly spot with a fire pit, perfect for a lunch break during a hike.

What are the best hiking trails around the lakes in Appenzell Innerrhoden?

The region offers numerous hiking opportunities. You can enjoy a 45-minute circumnavigation of Seealpsee, or embark on longer routes connecting to popular spots like the Äscher mountain restaurant and Ebenalp. For a more challenging experience, consider the 'Three magical lakes' hike which includes Seealpsee, Fählensee, and Sämtisersee. You can find more hiking options in the Hiking in Appenzell Innerrhoden guide.

How accessible are the lakes by public transport?

Many lakes are accessible by combining public transport with hiking. For instance, Seealpsee is easily reachable by foot from Wasserauen or Ebenalp, which are public transport hubs. To reach Fählensee, you typically start with a scenic uphill hike of about two hours from the 'Brülisau, Kastenbahn' stop.

What unique natural features do the lakes in Appenzell Innerrhoden offer?

The lakes in Appenzell Innerrhoden are known for their stunning alpine settings. Seealpsee is famous for its crystal-clear water reflecting the surrounding mountain peaks. Both Fählensee and Sämtisersee are unique karst lakes with no visible surface outflow, meaning their waters flow underground into the Rhine Valley.

Are there places to eat or stay near the lakes?

Yes, there are amenities available. At Seealpsee, you'll find two mountain inns directly by the lake offering refreshments and meals. Near Fählensee, the Bollenwees Mountain Inn is a popular spot for hikers, providing traditional Swiss dishes and mountain vistas.

What is the best time of year to visit the lakes?

The best time to visit the lakes for hiking and swimming is generally from late spring to early autumn (May to October), when the weather is milder and trails are clear of snow. Mid-summer is ideal for swimming in Seealpsee. In winter, some lakes, like Fählensee, can freeze over, offering a different kind of beauty, and Forstseeli is also worth seeing in winter, potentially requiring snowshoes.

What activities can I do besides hiking around the lakes?

Beyond hiking, you can enjoy various activities. At Seealpsee, you can rent rowing boats, picnic, and take stunning photographs. Fählensee is popular for anglers. The region also offers gravel biking and running trails. Explore more options in the Gravel biking in Appenzell Innerrhoden guide and Running Trails in Appenzell Innerrhoden guide.

Are there any less crowded lakes for a more tranquil experience?

While Seealpsee can be very popular, especially on weekends, Fählensee often offers a more serene escape due to its primary accessibility by hiking. Forstseeli is also described as a secluded spot, ideal for those seeking tranquility.

What do visitors enjoy most about the lakes in Appenzell Innerrhoden?

Visitors consistently praise the breathtaking natural beauty and panoramic views. The crystal-clear waters reflecting the surrounding mountains, the lush alpine pastures, and the serene atmosphere are frequently highlighted. The opportunity for refreshing swims and the presence of cozy mountain inns also contribute to a highly enjoyable experience.

Can I find local products or unique experiences near the lakes?

Yes, near Seealpsee, you can visit alpine cheese dairies during the summer months to sample local products like Seealp cheese. The region's mountain inns, such as the Bollenwees Mountain Inn at Fälensee, also offer traditional Swiss dishes in a stunning setting.

What is the difficulty level of hiking to these lakes?

The difficulty varies. The hike to Seealpsee from Wasserauen is generally considered suitable for both experienced hikers and families, taking about an hour. Reaching Fählensee typically involves a scenic uphill hike of about two hours, making it an intermediate-level trek. Longer routes, like the 'Three magical lakes' hike, are considered difficult.

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Find the best lakes in Appenzell Innerrhoden per region:

AppenzellObereggRüteSchwendeReute (AR)GontenHundwilSchlatt-Haslen

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