Caves around Anniviers are located in a Swiss region characterized by its alpine landscapes and glacial formations. The area features a diverse natural environment, including valleys, mountains, and geological structures shaped by glacial activity. This setting provides opportunities to explore various natural and man-made underground features. The region's geology contributes to the formation of unique cave systems.
Last updated: October 1, 2026
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Hiking around Anniviers
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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You don't have to dismantle the handlebars, just place it sideways and you'll get through the tunnel
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very suggestive tunnel perhaps a hundred meters long, you can only cross it by removing the front wheel and bending the handlebars
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Well, how much longer? In October there was only one bow left! The fifth picture (from Fatbikezermatt) from the beginning of July 2023 (!!) still had both sheets :-(
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This gem is not easy to find as there is no beaten path leading to it, let alone a sign pointing it out. But it's worth it. Tip: just follow the sound of the water. Once there, you can watch climate change in real time. The ice is literally raining down and getting less and less. CAUTION: There are stones on the "roof" of the arcades, most of which are floating in the open and are only just held in place by the ice. If you're lucky, you'll see one coming loose. If you're unlucky, you're just below. So exercise caution and prudence. The spectacle is worth seeing. Who knows how long the ice cave will be around in this form.
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Entertaining refreshing boat tour in an underground lake.
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Europe's largest underground lake, a short detour is worthwhile.
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The region offers diverse natural cave experiences. You can visit the Lac Souterrain de Saint-Léonard, Europe's largest underground lake, which provides a unique boat tour experience. Additionally, the Val d'Anniviers is home to the Zinal Glacier, where you might find impressive natural ice formations like the Glacier Arches, offering a glimpse into glacial geology.
Yes, the Lac Souterrain de Saint-Léonard is explicitly listed as family-friendly. It offers entertaining and refreshing boat tours suitable for all ages, making it a great option for families.
You can explore the Longeborgne Hermitage, a beautiful religious building nestled at the foot of a cliff with a chapel dug into a cave. For a historical industrial experience, the La Lée Copper Mine (Zinal), one of the few mines open to the public in Val d'Anniviers, offers a look into 500 meters of man-made tunnels.
For glacier-related features like the Zinal Glacier Cave or Glacier Arches, conditions can vary significantly by season. These natural ice formations are dynamic and constantly changing due to glacial movement and melt. For underground lakes or mines, access is generally more stable, but it's always advisable to check local conditions and opening hours before planning your visit.
Yes, for those seeking a challenge, the Tunnel entrance on the hiking trail along the Suone Claveau is part of a challenging trail. This tunnel requires navigating with a flashlight and can be quite narrow, adding an adventurous element to your hike.
For trails involving tunnels, such as the one leading to the Tunnel entrance on the hiking trail along the Suone Claveau, a flashlight is essential as lights may not always be working. For glacier caves or arches, appropriate outdoor clothing, sturdy footwear, and potentially crampons or ice axes might be necessary depending on the specific conditions and whether you are with a guide. Always check with local information centers for specific recommendations.
The Anniviers region offers numerous outdoor activities. You can find challenging Mountain Hikes, such as the Lac d'Arpitettaz loop from Zinal, or explore various MTB Trails like the Corne de Sorebois from Grimentz. For road cyclists, there are demanding Road Cycling Routes, including sporty loops around Saint-Luc, Zinal, and Barrage de Moiry.
The duration varies by attraction. The boat tour at Lac Souterrain de Saint-Léonard is a guided experience. For the La Lée Copper Mine (Zinal), it's a 1 ½ hour walk from Zinal to reach the mine, which then consists of 500 meters of tunnels to explore. Glacier caves like the Glacier Arches might involve a longer hike to reach them, and exploration time depends on conditions and personal pace.
The Glacier Arches are a prime example, showcasing dynamic ice formations within the Zinal Glacier. These arches are constantly changing, offering a unique perspective on glacial processes and the striking blue hues of ancient ice. The Lac Souterrain de Saint-Léonard also provides insight into the geological formation of the Alps.
Visitors often highlight the unique and immersive experiences. For instance, the Lac Souterrain de Saint-Léonard is praised for its entertaining and refreshing boat tours on Europe's largest underground lake. The Longeborgne Hermitage is appreciated for its beautiful setting and the chapel dug into the cliff. The Glacier Arches offer a spectacular, albeit challenging, encounter with natural ice formations.

