Caves near Wetteren Belgium are primarily man-made grottoes and historical subterranean structures, as the region's Cenozoic marine and unconsolidated sediments are not conducive to extensive natural cave formation. While natural caves are scarce directly within Wetteren, the broader Belgian region, particularly the Ardennes, offers numerous impressive subterranean attractions. The local 'caves' often serve historical, religious, or recreational purposes, providing unique insights into the area's cultural heritage.
Last updated: June 30, 2026
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The Aquarium Caves in Ghent were a popular attraction in the Citadel Park, housed in a cave-like structure. These “caves” were part of a miniature amusement park known in the mid-20th century for its exotic aquarium fish and other curiosities. The caves had a mysterious feel, with a combination of artificial rock formations and water features displaying various species of fish. Although once a popular place for families and children, the Aquarium Caves have fallen into disrepair over the years. Today they still exist, but are no longer used as a public attraction. The nostalgia surrounding the caves lives on among many older Ghent residents who still remember the place from their youth.
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The cave first opened in 1879 and had 33 aquariums at the time. Ghent residents came to marvel at freshwater and saltwater fish, but the idea did not last long.
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You don't see something like that very often
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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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Place of pilgrimage of Our Lady of Lourdes, built in 1874 by order of Margravine de Courtebourne, on whose domain the place of pilgrimage was created and accessible via Onze-Lieve-Vrouwdreef. The immediate cause for the creation of the place of pilgrimage was the construction of a fashionable aquarium in the shape of a rock (reminiscent of a hermit from the Margravine's family) in the garden of the Margraviess de Courtebourne castle in 1870-71, according to a design. by architect E. Van Hoecke-Peeters. At the request of the then pastor Moreels, a statue of Mary was placed in the rock. After the solemn consecration of the statue in the cave on June 29, 1873, the park of Slotendries Castle was gradually opened to Marian worshippers. After the miraculous healing of Pieter De Rudder on April 7, 1875, the place gained great fame as the so-called place of pilgrimage of Our Lady of Lourdes-Oostakker. Margravine de Courtebourne provided land along the pilgrimage road for construction and also partly contributed to the construction costs of a church, monastery, shop, hotel and several schools. It is said that architect J. Bethune was involved in the construction of all this.
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The 'caves' around Wetteren are primarily man-made grottoes and historical subterranean structures, rather than extensive natural cave systems. The local geology is not conducive to large natural cave formation. These sites often serve historical, religious, or recreational purposes, offering unique cultural insights.
No, there are no significant natural caves located directly within Wetteren. The geological makeup of the region, consisting mainly of Cenozoic marine and unconsolidated sediments, does not support the formation of extensive natural cave systems. For natural caves, you would need to explore further south into the Belgian Ardennes or nearby areas in the Netherlands.
Several sites around Wetteren are considered family-friendly. The Cotthem Grotto offers a beautiful and quiet environment for reflection. The Aquarium Caves in Citadelpark, though no longer an active attraction, hold historical charm. Additionally, Het Rotske and the Lourdes Grotto (Oostakker) are also suitable for family visits.
Yes, the 'caves' around Wetteren are rich in history. The Aquarium Caves in Citadelpark were once part of a miniature amusement park from the mid-20th century. The Cotthem Grotto is an artificial Marian Cave built in 1954, and the Lourdes Grotto with Processional Path dates back to 1879. These sites offer a glimpse into the region's cultural and religious heritage.
Yes, the Lourdes Grotto with Processional Path has recently been renovated with a new, wheelchair-friendly access road and permeable paving, making it accessible for visitors with mobility needs.
The area around Wetteren offers various outdoor activities. You can explore numerous hiking trails, including moderate routes like the Stuifduin Hiking Trail. For cyclists, there are many road cycling routes, such as the Kalkense Meersen loops. If you prefer running, you'll find several running trails, including the Path Beside the River – Kalkenvaart loop.
Visitors appreciate the unique blend of history, tranquility, and cultural significance these sites offer. For instance, the Cotthem Grotto is praised for its beautiful, quiet, and green environment, ideal for reflection. The historical aspect of places like the Aquarium Caves in Citadelpark evokes nostalgia among many locals.
Yes, several 'caves' around Wetteren are Marian grottoes with religious significance. These include the Cotthem Grotto, a renovated copy of the Lourdes Grotto, Het Rotske in Heusden, and the Lourdes Grotto with Processional Path. These sites are often places of silence and solace for visitors.
As most 'caves' around Wetteren are man-made grottoes and historical sites, they are generally accessible year-round. However, visiting during spring or summer allows for more pleasant exploration of the surrounding areas and nearby outdoor routes. Some religious grottoes may have special events or celebrations during specific times of the year, such as May.
The Het Rotske in Heusden is often considered a somewhat hidden Marian grotto. It offers a complete experience with a statue, burning candles, prayer benches, and thank you pictures, providing a quiet and reflective atmosphere away from more crowded spots.
If you're looking for significant natural cave systems, you'll need to venture outside the immediate Wetteren area. The Belgian Ardennes region, to the south, is well-known for its impressive natural caves. Additionally, nearby areas in the Netherlands, such as Valkenburg with its marl caves (e.g., Velvet Cave) and Maastricht with its extensive historical cave systems (e.g., North Caves, Zonneberg Caves), offer substantial underground exploration opportunities.

