Best caves around Ninove are predominantly man-made grottoes and religious shrines, as the East Flanders region is not characterized by significant natural karst features. This area offers unique cultural and historical sites, often serving as places of pilgrimage and quiet reflection. While natural caves are found further south in Belgium, Ninove provides accessible examples of constructed grottoes. These sites are integrated into the local landscape, offering a blend of natural surroundings and historical significance.
Last updated: May 19, 2026
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The Grotto of Poelk, located at the intersection of Grotstraat and Omloopstraat in the hamlet of Poelk (Roosdaal), is a Marian grotto that is a replica of the famous grotto in Lourdes. Founded in the 19th century by local residents, the grotto was built with sandstone from a demolished castle in the area and the statue of Mary was given a prominent place thanks to a donation from the family of mayor Frans Tondeurs. Since its foundation, the grotto has been a popular place of pilgrimage, where candle processions and Eucharistic celebrations take place every year in May, especially on Ascension Day.
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This Lourdes cave belongs to the Franciscan monastery (since 1875) that is located behind the Sint-Pieters-Banden and Sint-Berlindis churches. The cave was built on the initiative of August De Rouck, who lived in the country house on the Breivelde Domain and was also one of the most important financiers of the construction of the church. The cave is a beautiful example of so-called cement rustic as it was applied to places of pilgrimage. The entrance gate in the brick wall is trimmed with rockwork. On the ground floor there is a small chapel whose walls and ceiling are covered with imitation of rockwork and stalactites and where a door next to the altar gives access to the monastery. Above this chapel is an artificial 'mountain' with rockwork, largely hidden behind busy vegetation, with a statue of Our Lady in a niche and in front of it a statue of a kneeling Bernadette. On the right wall in the chapel hang a number of ex-votos, objects that serve as a support for supplication and/or as a thank you to God or a saint for a favor received. Source: https://inventaris.onroerenderfgoed.be/erfgoedobjecten/208919
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An artificial grotto dedicated to Our Lady of Lourdes. The people's shrine was built in 1879 in Tournai natural stone, which was transported from the Scheldt in Wetteren by horse and cart. Opposite the cave, seven brick chapels were built in 1954 containing representations of the seven joys of Mary. The domain experienced its peak in the 1950s and 1960s when hundreds of believers attended the solemn May celebrations. In recent years, 'De Rots' has mainly become a place of silence for people who seek solace in religion and nature. After volunteers had refreshed the sanctuary in recent years, a new, wheelchair-friendly access road has recently been constructed with a permeable paving on both sides for parking. The weathered chapel circuit has also been completely renovated.
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The Marian Cave, built in a bend of the Cotthem road in Sint-Lievens-Houtem, is an artificial cave from the Marian year 1954. It is a fairly large elaborate cave with two levels between green plantations. In recent years, the copy of the Lourdes Grotto became overgrown by plants. Stones crumbled and the statues of Mary and Bernadette no longer had any appearance. In 2016, the cave was renovated by volunteers from Okra Oombergen and rededicated by pastor Paul De Neve.
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Beautiful, quiet and green environment. Recommended for cycling or walking with the proximity of Cotthembos and the Oomberg forests.
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very beautiful authentic place at the foot of the Flemish Ardennes
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Place to pray before the climb to cafe 'Den Haas'
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This cave was inaugurated on May 25, 1976. Later, a woman with a large family testified that she had seen an apparition there: a bright light with a female statue in a meadow. The woman's family, friends and acquaintances built a faithful copy of the Lourdes cave on that site, in natural stone. A procession is held here every year.
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The 'caves' around Ninove are predominantly man-made grottoes and religious shrines, often replicating famous sites like Lourdes. The East Flanders region, where Ninove is located, does not feature significant natural cave systems. These grottoes offer unique cultural and historical experiences.
No, there are no notable natural caves located directly in Ninove or the surrounding East Flanders region. Belgium's prominent natural cave systems, such as the Caves of Han-sur-Lesse or Remouchamps, are primarily found in the Wallonia region, particularly in the Ardennes, which is further south.
Among the most popular grottoes are Poelk Grotto, a faithful replica of the Lourdes cave, and Cotthem Grotto, an artificial Marian cave with two levels. Visitors also appreciate the Grotto Chapel of Omloopstraat, which offers a quiet place for reflection.
Yes, grottoes like Poelk Grotto and Cotthem Grotto are considered family-friendly. They are generally accessible and offer a peaceful environment for visitors of all ages to explore and reflect.
Yes, the Lourdes Grotto with Processional Path has recently been renovated to include a new, wheelchair-friendly access road with permeable paving, making it accessible for visitors with mobility needs.
The grottoes are outdoor religious sites, so visiting during spring, summer, or early autumn offers the most pleasant weather conditions. May is particularly significant for many Marian grottoes, with special celebrations and processions often taking place.
Most grottoes are relatively compact sites. You can typically spend between 30 minutes to an hour at each location, allowing time for quiet reflection, appreciation of the architecture, and perhaps a short walk around the immediate surroundings.
These grottoes are significant as places of pilgrimage and reflection, often built as replicas of the famous Lourdes grotto. They represent local devotion and community effort, with some, like Cotthem Grotto, having been lovingly renovated by volunteers, preserving their historical and spiritual value.
The Ninove area offers various outdoor activities. You can find numerous routes for MTB trails, gravel biking, and running trails. These routes often pass through scenic landscapes, allowing you to combine a visit to a grotto with an active outdoor experience.
While specific hiking trails directly to each grotto might vary, the region around Ninove is well-suited for walking and running. You can explore various running trails that offer scenic paths and connect different points of interest, including some grottoes.
Visitors appreciate the peaceful and authentic atmosphere of these sites. Many find them to be quiet places for prayer and reflection, often set in green environments. The community efforts in maintaining and renovating these grottoes, such as at Cotthem Grotto, are also highly valued.


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