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Switzerland
Espace Mittelland
Interlaken-Oberhasli

Grimselsee

The best walks and hikes around Grimselsee

4.7

(958)

9,120

hikers

179

hikes

Hiking around Grimselsee is characterized by dramatic mountain scenery, azure reservoir lakes, and rugged granite formations. The region features a diverse landscape, transitioning from lush meadows to barren alpine terrain. Glacial vistas and towering rock faces are prominent features, with several hydroelectric reservoirs integrated into the natural environment.

Best hiking trails around Grimselsee

  • The most popular hiking route is Grimsel Pass to the Unteraar Glacier – Melting Giants, a 10.7 miles (17.2 km) trail that takes 5 hours to…

Last updated: April 27, 2026

4.8

(20)

203

hikers

#1.

Grimsel Pass to the Unteraar Glacier – Melting Giants

17.2km

04:58

440m

440m

Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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Hard

Moderate hike. Great for any fitness level. Mostly accessible paths. Sure-footedness required.

Moderate
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Moderate hike. Great for any fitness level. Mostly accessible paths. Sure-footedness required.

Moderate

Moderate hike. Great for any fitness level. Mostly accessible paths. Sure-footedness required.

Moderate

Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard
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Tips from the Community

Deki Fourcin
November 9, 2024, Oberaarsee

Impressive reservoir nestled into the breathtaking granite landscape. This is a popular starting point for the hike to the Oberaar glacier.

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In addition to the beautiful landscape, you should also take a look at the flora. Just as interesting are the numerous glacier traces along the path, such as rounded humps and glacier scratches.

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The glacier gate of the Unteraargletscher in July 2023. Although the lower part of the glacier tongue is covered with gravel, the glacier is still losing its length every year.

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There used to be ice here, now a glacier stream meanders and plants sprout up. The Unteraargletscher is the fourth largest glacier in Switzerland. However, it has also lost over 200 meters in height since 1850 and over two and a half kilometers in length since 1870.

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Very beautiful route! I heard that they want to increase the water in this lake to generate more electricity... then this fairytale-like walking path would be lost.

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Very beautiful and interesting path in an alpine landscape.

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Magnificent view on the ascent to the Sidelhorn

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The Grimsel Pass is a Swiss mountain pass that connects the Bernese Oberland with the Upper Valais and separates the Bernese from the Uri Alps. Within Switzerland, he is often referred to as Grimsel for short, more rarely in the masculine form. The pass is at 2163 m above sea level.

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Frequently Asked Questions

What kind of terrain and landscapes can I expect when hiking around Grimselsee?

Hiking around Grimselsee offers a dramatic and varied landscape. You'll encounter smooth granite rock formations, vibrant blue reservoir lakes like Grimselsee, Räterichsbodensee, and Gelmersee, and impressive glaciers such as the Trift and Rhone. The terrain transitions from lush green meadows to rugged, barren alpine areas, often featuring towering rock faces and powerful waterfalls. It's a unique blend of raw nature and human engineering.

Are there any easy or family-friendly hiking options around Grimselsee?

Yes, Grimselsee offers a range of trails suitable for various fitness levels, including easier options. While specific family-friendly routes aren't detailed, the region has 36 easy tours out of 181 total. Many trails are accessible via mountain railways like the Gelmerbahn, which can shorten walks and make them more manageable for families.

What are some notable attractions or points of interest to see along the trails?

The Grimselsee region is rich with attractions. You can visit the historic North Shore of Grimselsee, or experience the engineering marvels of the Grimsel Pass Road. The area also features impressive suspension bridges like the Trift Bridge and Handeck bridge, and the Historic Alpine Hotel Grimsel Hospiz. For panoramic views, consider a hike to the Sidelhorn summit.

Can I bring my dog on the hiking trails around Grimselsee?

Generally, dogs are welcome on hiking trails in the Grimselsee region. However, it's always advisable to keep them on a leash, especially in areas with livestock or protected wildlife. Be prepared for alpine conditions and ensure your dog has enough water, as some areas can be exposed.

Are there any circular walks available in the Grimselsee area?

Yes, there are several circular walks. For example, the Berghaus Oberaar – View of the Fiescher Glacier loop from Grimselsee is a moderate 2.7-mile (4.4 km) path offering views of the Fiescher Glacier and Oberaar reservoir. Another option is the North Shore of Grimselsee – Waterfall at Grimsel Reservoir loop from Grimselpass, a 2.3-mile (3.7 km) trail through alpine terrain.

What is the best time of year to go hiking in Grimselsee?

The best time for hiking around Grimselsee is typically during the warmer months, from late spring to early autumn (June to October), when the passes are open and trails are clear of snow. During this period, you can fully appreciate the alpine flora, glacial views, and access to higher-altitude routes. Always check local weather and trail conditions before heading out.

How many hiking trails are there in the Grimselsee region?

The Grimselsee region offers a vast network of hiking opportunities, with over 180 hiking tours available. These range from easy strolls to challenging alpine expeditions, ensuring there's something for every hiker.

Are there opportunities for winter hiking or snowshoeing around Grimselsee?

While the Grimsel Pass itself closes in winter, some lower-altitude areas or specific routes might be suitable for winter hiking or snowshoeing, depending on snow conditions and accessibility. However, the region is primarily known for its summer hiking. Always consult local guides or information centers for safe winter routes and conditions.

What do other hikers say about the trails in Grimselsee?

The Grimselsee trails are highly regarded by the komoot community, boasting an average rating of 4.7 stars from over 900 reviews. Hikers frequently praise the dramatic mountain scenery, the stunning azure reservoirs, and the unique blend of natural beauty with impressive human-made structures like the hydroelectric dams and historic Grimsel Hospiz.

Is there parking available for hikers near the trailheads?

Yes, parking is generally available at key access points and along the Grimsel Pass road. Specific parking areas can be found near popular trailheads and attractions. It's advisable to arrive early during peak season to secure a spot, especially for popular routes.

Can I reach the hiking trails using public transport?

Public transport options are available to reach the Grimselsee region, primarily through bus services that operate during the summer season, connecting to major hubs. These services often stop at key points along the Grimsel Pass, providing access to various trailheads and mountain railways like the Gelmerbahn, which can take you further into the hiking areas.

Are there any challenging or advanced hiking trails for experienced hikers?

Absolutely. The Grimselsee region is known for its demanding alpine expeditions. For experienced hikers, routes like Grimsel Pass to the Unteraar Glacier – Melting Giants, a 10.7-mile (17.2 km) difficult trail, offer significant challenges and rewarding views of glaciers. There are 74 difficult tours in the area, providing ample options for advanced adventurers.

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