Best caves around Les Ponts-de-Martel are found within the Swiss Jura region, characterized by its gorges, rock formations, and underground features. The area includes natural monuments like the Gorges de l'Areuse and Combe Poëta, offering diverse geological landscapes. Visitors can explore various types of caves, from natural rock tunnels to historical underground mills. This region provides opportunities to discover both natural and man-made subterranean environments.
Last updated: May 19, 2026
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Popular around Les Ponts-de-Martel
Beautiful waterfalls can be seen everywhere.
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Another rock arch on the way through the Gorges de l'Areuse / Areuse Gorge. One of the most beautiful gorges in Switzerland.
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really nice guided tour of the underground mill, also in German; it is unique and cannot be found anywhere else.
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The Pont de Vert is a picturesque site in the Areuse gorges. It is a stone arch bridge which dates from the 18th century. You will immediately understand the reason for the name of the bridge and the nearby cave as the water reflects the green colors of the moss on the overhanging rocks and trees. A magical place to discover. The perfect starting point for a run with a water fountain to fill your bottle.
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The underground mills of Col-des-Roches are a set of mills and underground tunnels built in the 17th century to harness the power of an underground river. A point of interest on your route and perhaps an opportunity to take a break and buy tickets for later.
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If you're looking for a fun break from your run in the Swiss Jura, you can visit the Grotte de l'Ours, near Ponts-de-Martel. This is not a deep cave, but rather a large rock formation with several holes that you can explore. The cave is located in a beautiful little gorge, the Combe Poëta, and the path leading there is already an attraction in itself. You can admire the forest, streams and peat bogs all along the way.
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If you are looking for a great adventure in the Swiss Jura, why not visit the Glacière de Monlési, the largest natural ice cave in Switzerland? You can access it on foot from the Col des Sagnettes, on the road between Fleurier and La Brévine. The cave is a karst sinkhole that contains three shafts, leading to a large ice-filled room. You can explore the icy wonders of this underground world, like stalagmites and ice stalactites. But be careful, it is very dangerous to go over the ladder or walk on the ice without the proper equipment and guidance. The Glacière de Monlési is a protected nature reserve and a unique geological phenomenon.
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The Col-des-Roches Underground Mills are a set of mills and underground tunnels built in the 17th century to harness the power of an underground river. You can learn the history and mechanics of this ingenious system through an audio guide or guided tour, and marvel at the sight of the waterwheels and sawmill in action. The temperature inside the caves is constantly 7°C, so don't forget to bring a warm jacket. You can also visit the museum which presents the role and function of mills and hydraulics in the region. The underground mills of Col-des-Roches are a fascinating example of the ingenuity and creativity of man in harmony with nature.
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The region offers a diverse range of subterranean environments, from natural rock tunnels and large rock overhangs to historical underground mills and ice caves. You can find natural monuments like the Rock tunnel on the hiking trail and the Bear Cave, as well as man-made historical sites such as the Underground Mills of Col-des-Roches.
Yes, the Bear Cave in the Combe Poëta gorge is considered family-friendly, offering an accessible rock exploration experience with several holes to discover. The Underground Mills of Col-des-Roches also provide a fascinating historical and educational experience suitable for families.
The region is characterized by its gorges and rock formations. You can see a natural rock arch within the Gorges de l'Areuse at the Rock tunnel on the hiking trail. The Pont de Vert showcases a picturesque site where moss-covered rocks reflect green hues in the water near a cave. For a more challenging experience, the Glacière de Monlési Ice Cave is Switzerland's largest natural ice cave, featuring ice stalagmites and stalactites within a karst sinkhole.
Visiting times vary by cave. Natural outdoor formations like the Rock tunnel on the hiking trail and Bear Cave can be enjoyed in warmer months. The Glacière de Monlési Ice Cave offers a refreshing experience even in midsummer due to its constant low temperatures. For the Underground Mills of Col-des-Roches, check their specific opening hours, as they are a managed historical site.
For natural caves and rock formations, sturdy hiking shoes are recommended, especially if you plan to explore gorges like the Areuse or Combe Poëta. If visiting the Underground Mills of Col-des-Roches, remember that the temperature inside is a constant 7°C, so bring a warm jacket. For the Glacière de Monlési Ice Cave, proper equipment and guidance are essential if you plan to venture beyond the accessible areas due to icy conditions.
Yes, the Underground Mills of Col-des-Roches are a significant historical site. These 17th-century mills harnessed an underground river to power grain mills, threshing machines, and saws. Visitors can explore the restored facility and a museum detailing the region's history and hydraulics.
The region around Les Ponts-de-Martel is excellent for various outdoor activities. You can find numerous road cycling routes, running trails, and general cycling tours. Many caves, like the Rock tunnel on the hiking trail and Bear Cave, are located directly on popular hiking paths within gorges, making them ideal stops during a longer trek.
The Glacière de Monlési Ice Cave is classified as challenging. While you can access it on foot, exploring beyond the initial areas, especially over the ladder or walking on the ice, is considered very dangerous without proper equipment and guidance. It is a protected nature reserve, and caution is advised.
For natural outdoor sites like the Rock tunnel on the hiking trail and the Bear Cave, dogs are generally permitted on the surrounding hiking trails. However, for managed sites like the Underground Mills of Col-des-Roches, it's best to check their specific visitor policies regarding pets before your visit.
Visitors appreciate the unique natural spectacle of deep crevices, walkways, and staircases hewn into the rock within gorges like the Areuse. The picturesque scenery, the cooling effect of natural tunnels on hiking paths, and the impressive blend of natural beauty with human ingenuity, as seen at the Underground Mills of Col-des-Roches, are frequently highlighted.
While specific cafes or pubs are not directly adjacent to every cave entrance, the region has villages and towns where you can find amenities. For example, the Pont de Vert area in the Areuse gorges is noted as a perfect starting point for a run with a water fountain available. For the Underground Mills of Col-des-Roches, there is a museum on-site which may offer facilities.
Exploration times vary significantly. Natural formations like the Rock tunnel on the hiking trail or the Bear Cave can be quick stops along a longer hike, taking 15-30 minutes to observe. A visit to the Underground Mills of Col-des-Roches, including the museum, could take 1-2 hours. The Glacière de Monlési Ice Cave requires a hike to reach and more time for exploration if properly equipped.


Extend your search for the best caves by checking out these guides of the top ones around Les Ponts-de-Martel: