Best caves around Sprimont are found within a region characterized by diverse subterranean sites, from extensive cave systems to karstic sinkholes. This Belgian municipality in the province of Liège and its surroundings offer a rich landscape shaped by hydrological processes. The area features numerous underground cavities, providing insights into geological formations and natural water systems. Visitors can explore both renowned tourist destinations and significant speleological sites.
Last updated: June 29, 2026
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Entrance fees (including the underground boat tour) may vary depending on the season. Children aged 3–11 pay €14, teenagers €17, adults €20, and seniors aged 60 and over €16. Reduced rates are available for people with reduced mobility. The caves are open daily from 9:30 a.m. to 5:00 p.m. Payment can be made in cash or by credit card. Reservations can be made online or by phone. A special tour for people with reduced mobility is available—please contact us in advance if you require one.
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This region is home to numerous sinkholes, where flowing surface water from streams disappears into cracks in the chalky subsoil, emerging much lower down in the landscape. The most famous is the Chantoir in Olne. The Ry de Vaux stream disappears into the subsoil here, flowing through an underground cave system and reservoir. It is fed by other surrounding water and re-emerges in several karst springs in Vaux-sous-Olne, 760 meters further and 60 meters lower!
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Also called Château Chrouet, after Dr. Warnier Chrouet, who had it built around 1700. Its facade was kept simple. At the rear, large windows overlooked the green Vesdre valley from the hill. A striking feature of the facade is the 17th-century entrance portal in carved limestone with a canopy (canopy) above it. This was typical of many buildings of that period in Olne and was locally called a "teutê." We also see some on the cemetery portal and the municipal garden, but most have been lost over time. The castle's teutë was embellished with a charming turret.
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The Olne sinkhole, where the Ry de Vaux stream plunges into the subsurface, emerging 60 meters lower in Vaux, at various points, and then reemerging nine days later. It flows through an underground cave system, flowing through other water bodies and a reservoir.
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is currently dry, unfortunately
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Unexpected spot in the middle of the park, next to a viewpoint over the city (let's see if we can still see that far when the trees have turned green...), a reminder of a time when the walking routes were punctuated by https://www.dogwhistlings.com
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Approach (Parking) 50.556177, 5.579821 This massif consists of various climbing routes with varying degrees of difficulty. 1) La Dalle → The Slab 2) Porche de la Grotte → Portal of the Grotto or Entrance to the Cave 3) Porche Triangulaire / The Anticlinal → Triangular Portal / The Anticlinal 4) Dalle Supérieure → Upper Slab 5) Les Bombés → The Overhangs
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Coordinates: 235.87/139.12/85 The cave is located on the Esneux-Tilff road, on the right bank of the Ourthe River, 1 kilometer before entering Tilff. The large entrance is approximately 20 meters above the road, at the foot of a very steep limestone cliff. This cave has been known for a long time: it was discovered during quarrying in 1837. In the 1960s, the "Réseau Lemaire" was discovered; an upper level with beautiful calcite pools and a lake. Source: https://www.scavalon.be/avalonnl/fiches/fich23.htm
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The region offers diverse experiences. The Remouchamps Caves are famous for Europe's only navigable underground river, the Rubicon, offering a unique boat tour. The Grotte de l'Abîme (Comblain) features a dramatic 22-meter abyss and beautifully illuminated formations. For those interested in natural hydrology, the Vallon des Chantoirs showcases streams disappearing into sinkholes, feeding the underground river systems.
Yes, both the Remouchamps Caves and the Grotte de l'Abîme (Comblain) are excellent choices for families. The Remouchamps Caves offer an engaging boat tour, while the Grotte de l'Abîme provides guided tours through illuminated galleries, highlighting unique formations in a playful way.
Caves maintain a constant temperature year-round, typically between 8 and 10 degrees Celsius in the Remouchamps Caves. This makes them a great destination regardless of the season. However, the surrounding natural areas, like the Vallon des Chantoirs, are best enjoyed in milder weather for hiking and exploration.
The Sprimont region is rich in karstic systems, where limestone bedrock has been shaped by water over millions of years. This process created extensive cave networks and sinkholes (chantoirs). The underground waters from these chantoirs, particularly in the Vallon des Chantoirs, converge to form the Rubicon river, which flows through the Remouchamps Caves, demonstrating a fascinating hydrological connection.
Yes, for experienced cavers, the region offers sites like the Grotte Perseverance. This cave, located in a quarry in Sprimont, is 170 meters long and 85 meters deep, involving descents and technical sections. The Chantoir d'Adzeux, part of the Vallon des Chantoirs, is also noted for its suitability for speleology, with a length of 440m and a depth of 65m.
The Remouchamps Caves offer a special tour for people with reduced mobility. It is recommended to contact them in advance to arrange this. The cave temperature is constant between 8 and 10 degrees Celsius.
Beyond the caves themselves, the region features beautiful valleys with interesting rock formations, such as the Chawresse Trail. The Vallon des Chantoirs highlights karstic sinkholes where streams disappear underground. The Grotte de l'Abîme is also a hibernation site for several bat species, adding to the natural interest.
The Sprimont area offers various outdoor activities. You can find numerous mountain hikes, running trails, and road cycling routes. For example, the Chawresse Trail is a charming path winding along a stream with interesting rocks and caves.
The Remouchamps Caves have been open to the public since 1828 and are recognized as a 'Wonder of Wonders' and part of Wallonia's Protected Heritage. The Grotte de l'Abîme (Comblain) was discovered in 1900 and opened to the public in 1929, offering a glimpse into early 20th-century tourism. Additionally, the Casino Grotto, Parc de la Chartreuse, is an ornamental construction from a past era, adding a historical touch to the landscape.
Visitors particularly enjoy the unique experience of the underground boat tour in the Remouchamps Caves, appreciating the silence and reflective waters. The impressive geological formations and the historical significance of these sites are also highly valued. The Chawresse Trail is loved for its charming path along a stream and interesting rocks.
While specific parking details are not always listed, major tourist attractions like the Remouchamps Caves and Grotte de l'Abîme (Comblain) typically provide dedicated parking facilities for visitors due to their popularity.
The Vallon des Chantoirs is a fascinating karstic system. You can find more detailed information about its hydrological processes and significance on Wikipedia.
For additional details regarding the Grotte de l'Abîme, including its history and geological features, you can consult its Wikipedia page.


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