Caves around Modave are situated in a region characterized by its karstic landscape, notably near the Hoyoux River, a tributary of the Meuse. This area, part of the broader Ardennes, is known for its geological formations and rich archaeological history. The natural environment, including forests and river valleys, offers diverse opportunities for exploration. The region also features historical sites, such as the Château de Modave, adding to its cultural appeal.
Last updated: July 14, 2026
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The first descriptions of this Trou Manto date back to 1833. The name refers to the prophetess Manto, daughter of Tiresias of Thebes, who was brought to Delphi after her birthplace was conquered by the Epigoni. From there she traveled to Asia Minor, where she married the Cretan Rhacius, with whom she had Mopsus, and founded a temple of Apollo in Claros. According to legend, she spent her last days in Italy. What the link between this cave and the legend from Greek antiquity is, is unclear. It is a fossil cave. In 1964, a narrow passage was made to the adjacent 'Grotte Sint-Etienne'. This junction is called the "birth" by speleologists. It is, along with the 10m deep shaft, the most difficult segment of the cave. The cave is not accessible to the public and has never been developed for tourism. Only with a membership card of the Belgian Speleological Union and a key can you access the limestone passages. To protect the site, it was decided to close the entrances with massive doors equipped with padlocks. However, as bats had been regularly present during their hibernation since 1970, the entrances to the two caves were only screened in 1990 to facilitate their entry and exit. Observations of these small mammals by NATAGORA led to the identification of several regionally endangered species, such as the lesser horseshoe bat and the Bechstein's bat. Vincent Poitier, a pioneer of the 4th Baden Powell unit of the Collegiate Church of Huy, organized several visits to the cave system together with scout leader Jean-Louis Cuvelier. Some entered through the Trou-Manto cave, while others, the more adventurous, went directly through the Trou St-Etienne cave. source: wikihuy.be
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Beautiful rock formations at Les Awirs with caves and climbing rocks
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Located in the Solières valley near Huy, the Trou Manto cave is a limestone cave with a complex network of tunnels. Access is via a steep path supported by a rope. The cave has three levels with magnificent stalactites, a sloping floor with collapses, and twelve large columns supporting the vaults. The entire structure is an impressive karst phenomenon, approximately 600 meters long and 48 meters deep. The cave is protected and fenced off due to vandalism and to protect bats; visits are only possible with a guide or a caving association. The cave is known for its diverse hydrological phenomena and the legend of the Nutons, gnome-like helper beings from folklore. This combination of nature, history, and mythology makes Trou Manto a special place.
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The Caverne des Romains is located at the top of the slope, 70 meters upstream from Trou-Manto. This southwest-facing rock is 12 meters high and 24 meters long. A beautiful porch forms an arcade 5 to 6 meters high, 10 meters wide, and 6 to 7 meters deep; it is made of compact limestone. It is more of a "rock shelter" than a true cavern or grotto, but it also makes a very beautiful climbing rock...
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A collection of four caves, two of which are closed off as bat roosts. A steep climb or descent over a rocky path is definitely worth it.
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A collection of four caves, two of which are closed off as bat roosts. A steep climb or descent over a rocky path is certainly worth the effort.
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The complex originally consisted of four caves, some of which have now disappeared due to natural collapse and the proximity of quarries. The caves have been protected as cultural heritage in Wallonia since 1978 and have an exceptional status due to their scientific value. Although the caves themselves are currently not open to the public, the site remains an important archaeological and natural history location that visualizes the evolution of humanity.
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This is a cave I used to visit a long time ago. Before, you could start at the very bottom and work your way up to the top of the quarry. Now, I don't think that's possible anymore.
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The Modave region offers a variety of cave experiences, from complex limestone tunnel systems like Trou Manto, known for its stalactites and columns, to historically significant archaeological sites such as the Schmerling Caves site. You can also find natural rock shelters like La Caverne des Romains.
Yes, the Schmerling Caves site is historically significant for the discovery of prehistoric human remains, including what was later recognized as Neanderthal man, in 1829. Additionally, the Ossuary Caves of Avins have yielded prehistoric traces and bones from at least 21 people, indicating their use as a burial site during the Neolithic period.
While Trou al'Wesse is a significant archaeological site near Modave, it is primarily recognized for its scientific and ecological value, particularly as a bat habitat. It is not generally open to the public as a tourist cave with regular visiting hours or guided tours.
Many caves in the Modave area, such as Trou Manto and La Caverne des Romains, involve steep climbs or descents over rocky paths. Conditions can be slippery, especially in wet weather. Some caves, like Trou Manto, are only accessible with a guide or caving association due to their complex nature and protected status.
The caves directly around Modave, such as Trou Manto and La Caverne des Romains, often involve challenging terrain with steep and potentially slippery paths, making them less suitable for very young children or those with limited mobility. For more traditional, family-friendly cave experiences with guided tours, you might consider exploring the broader Ardennes region, which features well-known tourist caves like those of Han-sur-Lesse or Remouchamps.
Many caves in the region, including parts of Trou Manto and the Cave entrance in Bois de Malvin, are protected as bat roosts. These caves provide crucial habitats for various bat species, especially during hibernation. Access to some areas is restricted to protect these sensitive populations.
The area around Modave offers various outdoor activities. You can find numerous road cycling routes, such as the "Wall of Huy – Mur de Huy loop from Barse," or running trails like the "Waterfall on the Hoyoux – Modave-Village loop." There are also gravel biking opportunities, including the "View of Méry – Roche-aux-Faucons Loop." For more details on these routes, you can explore the Road Cycling Routes around Modave guide, Running Trails around Modave guide, and Gravel biking around Modave guide.
The caves mentioned in the immediate Modave area, such as Trou Manto and La Caverne des Romains, are generally described as having challenging access with steep and rocky paths. The Schmerling Caves site, while historically significant, is no longer accessible for exploration. Therefore, easy accessibility for all visitors, including those with mobility issues, is limited for the local caves.
Given the challenging and often slippery terrain, especially in wet weather, it's advisable to wear sturdy hiking boots with good grip. Layers of clothing are recommended as cave temperatures can be cooler than outside, and some areas may require crawling or squeezing through tight spaces. If visiting a cave that requires a guide, they will often provide specific gear recommendations.
Yes, while Modave itself has specific types of caves, the broader Ardennes region is renowned for its extensive and publicly accessible cave systems. Famous examples include the Caves of Han-sur-Lesse, Remouchamps, and Hotton, which offer guided tours and impressive geological formations. You can find more information about these at visitardenne.com.
Trou Manto is a limestone cave featuring a complex network of tunnels, magnificent stalactites, and twelve large columns. It's approximately 600 meters long and 48 meters deep, showcasing impressive karst phenomena. The cave is also associated with the legend of the Nutons, gnome-like helper beings from folklore, adding a mythical dimension to its natural beauty.


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