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Belgium
Wallonia

Bertrix

Top 5 Caves around Bertrix

Best caves around Bertrix are found in the Belgian Ardennes, a region known for its natural landscapes and historical significance. The area features a mix of natural cave formations and underground sites linked to its industrial past, particularly slate mining. Bertrix is situated near the Semois River, offering diverse geological features. This guide focuses on the unique subterranean experiences available in and around the town.

Best caves around Bertrix

  • The most popular cave is Saint-Remacle Caves, a natural monument…

Last updated: April 17, 2026

Chassepierre Village

Highlight • Settlement

Chassepierre is an artists' village situated on the Semois River. Chassepierre derives from the Latin casa petrea ("stone house"). It is one of the most beautiful villages in Wallonia.

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Extraordinary vestige of the Tertiary era, a network of underground galleries dug out by man in the lime tuff (cron).

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Saint-Remacle Caves

Highlight • Cave

Caves always have something mystical, even in this rock a hermitage or hermitage has been cut out. The cave is called Saint-Remacle. It is a place full of history and legends.

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Lourdes Grotto on the Semois

Highlight • Religious Site

A little higher on the banks of the Semois you can find this Lourdes grotto. Two benches invite you to contemplate. A moment to hit the pause button.

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Grotto of Little Maria

Highlight • Cave

In a niche of this large boulder you can find Mary.
Those who need it can share a moment with her here.

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Popular around Bertrix

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Dominiek Van Dooren
July 21, 2025, Chassepierre Village

Chassepierre is an artists' village situated on the Semois River. Chassepierre derives from the Latin casa petrea ("stone house"). It is one of the most beautiful villages in Wallonia.

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memorial place?

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Impressive and quickly accessible via a small junction

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Had a small celebration on the streets that day.

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In a niche of this large boulder you can find Mary. Those who need it can share a moment with her here.

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Actually, the Trou des Fées and the site du vieux moulin are the same place!

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The Trou des Fées in Chassepierre is a network of underground galleries dug by man in the cron (limestone rock). They extend under the foundations of the old mill and join the presbytery where they merge with the cellars. The Trou des Fées as well as the ruins of the old mill have been restored and are open to visitors freely.

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The site of the old Chassepierre mill is located between the presbytery and the church. Unfortunately, it was demolished in 1980, but this allowed the updating of the vestiges of a much older occupation of the site and of its geological origin, nicely called the “Trou des Fées”: a network of galleries dug by men in the limestone rock (cron) which extends to join the cellars of the presbytery and forms a mysterious network, attributed, perhaps, to the place of residence of magical beings…

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Frequently Asked Questions

What types of underground experiences can I find around Bertrix?

The Bertrix area offers a diverse range of underground experiences, from natural cave formations to sites linked to its industrial past. You can explore former slate mines, natural grottoes, and man-made galleries with historical and religious significance.

Are there any historical underground sites to visit near Bertrix?

Yes, the region is rich in history. You can visit Le Trou des Fées and Old Mill Ruins of Chassepierre, a network of underground galleries dug by humans in lime tuff that extend under an old mill and connect with presbytery cellars. Another significant site is Au Cœur de l'Ardoise (Domaine de la Morépire), a former slate mine where you can explore galleries and learn about the lives of slate miners.

What are the Saint-Remacle Caves known for?

The Saint-Remacle Caves are an oratory of three natural caves carved into a rock face above the Semois River. They are interconnected and known for their mystical atmosphere, historical significance, and local legends.

Can I visit a grotto for contemplation or religious significance?

Yes, the Grotto of Little Maria offers a quiet place for contemplation, with a niche in a large boulder housing a figure of Mary. There is also a Lourdes Grotto higher up on the banks of the Semois, providing another peaceful spot.

What is the best time of year to visit the caves around Bertrix?

While many caves and underground sites are accessible year-round, the spring and autumn months often provide pleasant weather for exploring the surrounding natural landscapes and hiking trails. Some attractions, like the slate mine, may have specific operating hours or seasonal closures, so it's advisable to check in advance.

Are there family-friendly cave tours or activities in the Bertrix area?

Many of the sites, particularly the former slate mine Au Cœur de l'Ardoise, are designed to be educational and engaging for families, offering guided tours and immersive experiences. The natural caves and grottoes can also be explored by families, depending on the specific site's accessibility and the children's ages.

What kind of outdoor activities can I combine with a visit to the caves?

The Bertrix region, nestled in the Belgian Ardennes, is ideal for various outdoor activities. You can find numerous cycling routes, including options for touring bicycles and mountain biking, as well as running and hiking trails. For more details on routes, explore the Cycling around Bertrix, Running Trails around Bertrix, and MTB Trails around Bertrix guides.

How do the caves in Bertrix compare to the Han Caves?

The caves around Bertrix primarily showcase a mix of natural formations and historical industrial sites, particularly the slate mines like Au Cœur de l'Ardoise, which offer a unique insight into the region's mining heritage. The Han Caves, located in the broader Ardennes region, are renowned for their spectacular natural geological formations created by the Lesse River and are considered a major natural wonder in Belgium. Both offer distinct and valuable underground experiences.

What should I wear when visiting the underground sites?

Underground environments typically maintain a cool, consistent temperature regardless of the outside weather. It is advisable to wear comfortable walking shoes and bring a light jacket or sweater, even in summer. For sites like the slate mine, helmets are often provided for safety.

Are there guided tours available for the caves?

Yes, for sites like Au Cœur de l'Ardoise (Domaine de la Morépire), guided tours are available, often including audio guides and equipment like helmets. These tours provide in-depth information about the history and geology of the site. For natural grottoes, self-guided exploration is often possible.

Where can I find information about parking or public transport to the cave sites?

Specific parking availability varies by site. For major attractions like Au Cœur de l'Ardoise, dedicated parking is usually provided. Public transport options in the Ardennes can be limited, so driving is often the most convenient way to reach many of the cave sites. It's recommended to check the official website of each specific attraction for detailed access information.

Are there cafes or restaurants near the cave attractions in Bertrix?

Bertrix and nearby villages like Chassepierre offer various dining options, from local cafes to restaurants serving regional specialties. Some attractions, such as Au Cœur de l'Ardoise, even offer unique experiences like a 'gourmet mine' option where you can dine underground or enjoy local product tastings after your tour.

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