Natural monuments around Andenne, a town located in the Meuse valley in Belgium, offer diverse natural beauty and geological interest. The region features significant prehistoric sites and areas of rich natural heritage. Its landscape provides opportunities to explore geological formations, ancient history, and varied outdoor activities.
Last updated: May 14, 2026
Highlight • Castle
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Highlight • Cave
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Highlight • Historical Site
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Excavations are conducted year-round at Moha Castle, making it unique in Belgium. When I visited, two archaeologists were uncovering a wall that runs beneath the visible castle and likely dates back to the 12th century.
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The castle is free to visit. At the foot of the rock, there's a visitor center where you can pick up a badge to open the gate. For €4, you can also get a brochure with information about the most important points. The castle is only open to visitors starting in April, but the friendly man at the visitor center let me in on February 27th... as far as you can even call it "inside" at this ruin ;-)
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The exact origins of the medieval County of Moha remain unknown. It is likely that the county was formed during the fragmentation of the Carolingian Empire and the Hesbaye region at the end of the 9th century. The first known count, Albert of Moha, is mentioned in a document dated 1026 or 1028. The first defensive stone walls also date from the first half of the 11th century. Having no male heir, Albert of Moha married his daughter to Henry I of Dasbourg around 1050, thus linking the county's destiny to that of this powerful family of Alsatian origin. Initially, it is highly unlikely that the Counts of Dasbourg regularly resided in Moha, entrusting the county's administration to trusted men and a small garrison. However, the situation changed with Hugh II (1130-1180) and his son Albert II (d. 1212), who decided to become more involved in the region's politics. Albert II, in particular, chose to align his interests with those of his nephew, Duke Henry I of Brabant, whose policies he would follow until the end of the 12th century. In 1204, Count Albert III, having lost hope of having a son, chose the Prince-Bishop of Liège as his heir. But the late birth of his daughter Gertrude would jeopardize these agreements. Quickly betrothed to Thibaut of Lorraine, who died in 1219, she then married Thibaut of Champagne, who repudiated her, and subsequently Simon of Linange. At 19, she died childless. On March 19, 1225, the Prince-Bishop of Liège, Hugues de Pierrepont, took possession of Moha. Under the Prince-Bishops, Moha became a prison for political prisoners and a fortification tasked with controlling the city of Huy and blockading merchants. This policy was deeply unpopular and led to reprisals: the people of Huy besieged Moha in 1255. The fortress of Moha was considered impregnable. It was therefore through trickery that the people of Huy, taking advantage of a request for a truce, seized the castle on May 6, 1376. After the attack on the castle, the site's history is largely unknown. Mass is still celebrated twice a year in the castle chapel. During the 18th century, the ruins served as a refuge for a hermit. The castle's stones were gradually plundered, notably to build the surrounding houses. In 1889, the ruins of the castle were purchased by the Belgian state. Source: https://chateaumoha.be/histoire
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The "Rocher du Château de Moha" is a limestone outcrop rising from the Mehaigne valley. It was a strategically important site in the Middle Ages, when more castles were built on rocks. This made the site difficult to besiege, and it was well-placed as a control point over the valley. The rock is very recognizable in the landscape. The ruins on the rock are still clearly visible, and the medieval structures are still easily recognizable.
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The Arville Cave is located near Arville Castle in Faulx-les-Tombes and consists of several smaller cavities collectively known as the "Arville Caves." The most famous cavity is the actual Arville Cave (also known as the Trou du Chantoir), which is located on the northern slope of a paleokarst depression. This depression has a nearly permanent pond at its bottom, the water level of which varies with the seasons. The caves are not open to the public or tourists. They are primarily an interesting karst area for geological and local nature walks.
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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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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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The Château de Moha is a medieval feudal castle in Wanze, built on a rock at the confluence of the Mehaigne and Fosseroule rivers. Dating back to the 7th century, the castle served as a defense for the region. It became the property of the Prince-Bishops of Liège, who used it as a fortress and prison. In 1376, the castle was captured by the inhabitants of Huy through deception, marking the end of its military function. The castle subsequently fell into disrepair, but the ruins have been preserved and are open to the public.
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Among the most appreciated natural monuments are Modave Castle, which is set in a nature reserve overlooking the Hoyoux valley, and Moha Castle, a medieval feudal castle built on a strategic rock formation. Visitors also frequently explore Trou Manto, an impressive karst cave system.
Yes, several natural monuments are suitable for families. Modave Castle offers beautiful grounds and a castle visit that can be engaging for all ages. The Seron Tumuli, ancient Gallo-Roman burial mounds, provide an interesting historical outdoor experience. Additionally, the Samson Valley is ideal for family strolls and enjoying nature.
The region is rich in diverse natural features. You can explore significant cave systems like Trou Manto and the prehistoric Grotte Scladina. There are also impressive rock formations that host historic castles, such as Moha Castle. The Samson Valley offers picturesque landscapes with rivers and forests, while the Sclaigneaux Nature Reserve provides opportunities to observe local flora and fauna.
Absolutely. The Grotte Scladina is a major prehistoric site where you can explore an extensive cave system and learn about Neanderthal life through archaeological finds and guided tours. Moha Castle, a medieval feudal castle, is built on a prominent rock formation and offers a glimpse into the region's strategic past. The Seron Tumuli are ancient Gallo-Roman tombs with historical significance.
The area around Andenne is excellent for various outdoor activities. You can enjoy cycling along the Meuse River with routes like the 'Tour d'Andenne' or explore challenging MTB trails such as the 'Cliff Edge and Forest Path' loop. For more options, check out the guides for Cycling around Andenne, Road Cycling Routes around Andenne, and MTB Trails around Andenne.
Yes, the Samson Valley is known for its numerous trails, perfect for walking and discovering the natural beauty. While specific hiking routes for individual natural monuments are not detailed, the broader region offers many paths. For cycling routes that often include scenic paths, you can refer to the Cycling around Andenne guide, which may provide inspiration for walks.
Many sites, like Modave Castle, are open from spring (March/April) to mid-November, making these seasons ideal for exploring. The pleasant weather during spring and autumn is also perfect for outdoor activities in the Samson Valley and Sclaigneaux Nature Reserve. Some caves, like Grotte Scladina, offer guided tours year-round, but it's always best to check specific opening hours.
Yes, the region is known for its caves. The Grotte Scladina is a significant prehistoric cave offering guided tours. Trou Manto is another impressive karst cave system, though access is often restricted to guided visits or caving associations due to its protected status and bat roosts. The Arville Cave is primarily for geological interest and not open to the public.
Visitors frequently appreciate the blend of natural beauty and historical significance. The stunning views from sites like Modave Castle and Moha Castle are highly rated. The unique geological formations of the caves and the tranquility of areas like the Samson Valley also receive positive feedback. The komoot community has shared over 170 photos and given more than 370 upvotes for these natural monuments.
For more details on the natural heritage and parks in the area, you can visit the official tourism website for Andenne. They provide information on various natural sites and activities. You can find more information at andennetourisme.be.
Yes, several natural monuments offer excellent viewpoints. Modave Castle provides commanding views over the Hoyoux valley. Moha Castle, perched on a rock, offers beautiful views of the Mehaigne and Fosseroule rivers. The Seron Tumuli are located on a plateau, offering a distant view of the Hesbaye Namur landscapes.


Extend your search for the best caves by checking out these guides of the top ones around Andenne: