Top 14 Caves in the Valais
Caves in the Valais offer a diverse range of subterranean experiences within Switzerland's alpine landscapes. The region, known for its high mountains and glaciers, also features geological formations shaped by centuries of natural processes. These include natural caves, ice grottoes, and man-made tunnels. Valais provides opportunities to explore unique underground environments, from ancient ice to historical mining sites.
Best caves in the Valais
- The most popular caves is Ice Palace at the Jungfraujoch, a man-made structure and natural monument.…
Last updated: June 25, 2026
Ice Palace at the Jungfraujoch
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Entrance to Grotte aux Fées
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Rhone Glacier
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Cave
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At first you will feel inclined to enter but …
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Rhone Glacier Ice Cave
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Tunnel entrance on the hiking trail along the Suone Claveau
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Tunnel, Suspension Bridges and Waterfall in Valais
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St. Michael's Rock Church
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She has her own charisma.
Public toilet available.
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Bunker Tunnel
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Old Mines of Mont Chemin
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Tips from the Community
To pass with a mountain bike, remove your front wheel and turn your handlebars to 90°...
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Cave entrance, well... If you want to hike the Claveau irrigation channel, you have to go through this tunnel. Anyone with claustrophobia should definitely bring a flashlight. The lights weren't working in October 2025.
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A really great, varied section with bridges, tunnels and a waterfall.
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You don't have to dismantle the handlebars, just place it sideways and you'll get through the tunnel
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The Rhone Glacier (sometimes also called Rotten Glacier) is a valley glacier in the source area of the Rhone in the extreme northeast of the canton of Valais in the central Alps of Switzerland. It is almost eight kilometers long, has an average width of about two kilometers and covers an area of about 15 km². The glacier was a major tourist attraction, especially in the 19th and early 20th centuries, due to its tongue, which at that time still extended far down into the valley near Gletsch.
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Well, there is not much left of the glacier cave. We visited the cave for the first time in 2017 and are shocked today at what is left of it. The piece of ice in which the cave is located no longer has any contact with the glacier and the second piece covered with fleece also has almost no contact with the Rhone glacier. The glacier cave is the reflection of the Rhone glacier in the future.
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A glacier educational trail leads through the picturesque high mountain scenery along the glacier lake to the ice grotto near the glacier tongue. For almost 200 years, this has been carved into the glacier practically every year and inside you can experience a "blue miracle" because the grotto shines in a wonderful blue light. Despite the enormous melting of the glacier, the Rhone Glacier is still almost 9 km long and up to 200 m thick. The glacier movement at the level of the ice grotto in the tongue area is 30 - 40 m annually or up to 10 cm per day; nowhere else in Europe can you get as close to a glacier as in the ice grotto in the Rhone Glacier.
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Frequently Asked Questions
What are some of the most popular caves to visit in the Valais region?
The Valais region offers a variety of subterranean experiences. Among the most popular are the Ice Palace at the Jungfraujoch, known for its impressive ice formations, and the Tunnel, Suspension Bridges and Waterfall in Valais, which features a cave as part of a varied trail.
Are there any family-friendly caves in Valais?
Yes, several caves in Valais are suitable for families. The Old Mines of Mont Chemin is considered a family-friendly attraction, offering insight into historical mining activities. Additionally, the St. Michael's Rock Church, built into the rock, is also family-friendly.
What is the Lac Souterrain de St-Léonard and how can I visit it?
The Lac Souterrain de St-Léonard is Europe's largest natural underground navigable lake, located between Sion and Sierre. You can explore it via guided boat tours. Reservations are recommended, and you can find more information on their official site: sierretourisme.ch or myswitzerland.com.
Can I visit an ice cave in Valais?
Yes, the Ice Pavilion in Saas-Fee offers a unique experience. Located on Mount Mittelallalin within the Fee Glacier, it's a man-made glacier cave accessible via the Metro Alpin cable car. It provides a fascinating glimpse into ancient ice layers and features ice sculptures.
What is the Grotte aux Fées and when can I visit it?
The Grotte aux Fées (Fairy's Cave) near Saint-Maurice is historically significant as Switzerland's first tourist cave. It features a well-lit educational trail and an underground lake with a 70-meter waterfall. Please note that the Grotte aux Fées will be closed throughout 2026 for renovations and is projected to reopen in spring 2027.
Are there any tunnels or unique cave-like structures accessible on hiking trails?
Yes, the Tunnel entrance on the hiking trail along the Suone Claveau is a notable example. This tunnel is part of the Claveau irrigation channel trail and requires a flashlight as it can be very dark. Another interesting spot is the Bunker Tunnel, which offers a unique shortcut and historical insight.
What kind of geological formations can be found in Valais caves?
Valais caves showcase diverse geological formations. The Lac Souterrain de St-Léonard, for instance, was formed by the slow dissolution of gypsum over centuries. Other sites, like the Ice Pavilion in Saas-Fee, offer insights into ancient glacial ice layers, some millions of years old.
What outdoor activities can I do near the caves in Valais?
The Valais region offers numerous outdoor activities. You can find various easy hikes, challenging running trails, and scenic road cycling routes throughout the canton. Many of these routes pass near or offer views of the region's natural wonders.
Is there an icicle tunnel I can visit in Valais?
Yes, the Icicle Tunnel at the Mattmark Reservoir is a notable natural monument and cave that can be explored. It offers a unique visual experience, especially during colder periods.
What is the best time of year to visit caves in Valais?
Many natural caves and underground lakes, like the Lac Souterrain de St-Léonard, are generally open from spring to autumn. Ice caves, such as the Ice Pavilion in Saas-Fee, are typically accessible year-round due to their glacial nature, though specific opening times can vary. Always check individual attraction websites for current operating hours.
Are there any historical sites related to caves in Valais?
Yes, the Old Mines of Mont Chemin provide a historical perspective on past mining activities in the region. The Grotte aux Fées also holds historical significance as one of Switzerland's earliest tourist caves.
What should I wear when visiting caves in Valais?
Temperatures inside caves are often consistently cool, regardless of the outside weather. It's advisable to wear warm layers, even in summer. Comfortable, sturdy shoes with good grip are also recommended, especially for caves with uneven terrain or wet surfaces.
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