Best caves around Tienen offer a unique blend of historical sites and man-made grottoes. While natural geological formations are limited, the area features significant archaeological underground structures and religious grottoes. These sites provide insight into ancient practices and local heritage. Visitors can explore various underground features Tienen Belgium, from Roman temples to modern grottoes.
Last updated: June 30, 2026
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Popular around Tienen
This path, which you reach after a short, steep climb from the stream, leads you along an inaccessible nature reserve, where you literally walk above an old quarry and caves for a part. At a certain point you literally walk above the entrance to that underground quarry that you can also see below. Part of the path runs between the edge of the valley and fields and on another part you have the nature reserve instead of the fields that was given the name 'Réserve naturelle Natagora des Caves Paheau'. Natagora is the counterpart of Natuurpunt and the quarry and caves are therefore called the 'caves Paheau'.
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The Heldensquare is more of a memorial than a monument. As a monument, it commemorates the victims of Belgian independence, the First World War and the Second World War. The place where the Heldensquare is located used to be a pond, a fact that was included in the concept. The square is sunken and surrounded by benches, planters, trees, a broken stone wall and various works of art. The monument itself consists of a sculptural ensemble in bronze and bluestone with a brick wall next to it with the names of the fallen and the text "VOOR UW VRIJHEID ZIJN MENSEN GESDIVEN". Around the bronze dome with the statues you will find the names of four places from which soil was brought to Tienen in urns: Dachau, Zwickau, Stalag IA and Breendonk. The whole was created by local architect Jacques Piron and sculptor Georges Van de Voorde. Inventory of Immovable Heritage: War Memorial Heldensquare, https://id.erfgoed.net/erfgoedobjecten/214961
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You enter and exit the cave via rather large stairs and see all kinds of thank-you notes from believers who once came here. At the entrance of the cave (on the right) there is also a frame with some explanation about Our Lady of the Pool. According to that sign, the remains of a pious man named Thierry were found around 1050. He came from Campen and was a lecturer at the University of Paris. He had also made a promise of eternal chastity to the Virgin Mary. A chapel was built at the site of the murder with the permission of Jan I, Duke of Brabant. And he was baptized, you guessed it, Our Lady of the Pool. Hundreds of pilgrims would come to Tienen and the chapel every year to venerate the Virgin Mary, who was soon regarded as the Queen of the city and its surroundings. And you can read and experience the rest here, in the immediate vicinity of the church and – literally – in the depths when you go down the stairs.
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No one will stop you from stopping at the cave...
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These column-like shapes are beautifully arranged in a circle, each with a statue attached to it...
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Limit your speed on the descent!!! Blind turn and possible pedestrians.
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The neo-Romanesque Saint Barthélemy church dates from 1868. In front of the church is an old cross and to the left of the church (on the ground of the church itself, near the entrance) a cave has been built that you can clearly see from the road, a unusual and a fairly large construction that gives the church environment a very special view. On the right side of the church, a small road leads you to a picturesque old part of the village, the Kleine Gete, the old mill and an old barn.
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The Tienen region is unique because it features significant archaeological underground structures and man-made religious grottoes, rather than natural geological caves. These sites offer insights into ancient practices and local heritage.
No, the Tienen region is not known for natural cave systems. The 'caves' you'll find are primarily archaeological sites like the Tienen Mithraeum or man-made grottoes, often associated with religious devotion.
The Tienen Mithraeum is an ancient underground temple dedicated to the Roman god Mithras, discovered in 1998. It's considered a 'cave' in an archaeological context, reflecting the typical design of Mithraic worship sites. It's one of only four found in Belgium and dates back to the 3rd century CE.
The Tienen Mithraeum provides valuable insights into the Cult of Mithras, a mystery religion popular among the Roman army. Archaeological finds at the site, such as an incense burner, a bronze plaque, and evidence of large-scale feasting, have contributed to understanding this ancient religious practice. You can learn more about Mithraism on Wikipedia.
While the Tienen Mithraeum is a significant archaeological site, it is not currently open to the public for regular visits due to its delicate nature and ongoing preservation efforts. Information about its discovery and significance is available through local heritage initiatives.
Yes, the Tienen area is home to several man-made religious grottoes. Notable examples include the Lourdes Grotto Tielt-Winge, constructed in 1878, and the Grotto Chapel in Bois Colau, which features a chapel built in the shape of a cave.
Many of the grottoes, such as the Lourdes Grotto Tielt-Winge and the Saint Bartholomew's Church and Lourdes Grotto, are considered family-friendly. They offer historical and cultural interest in accessible settings, often with surrounding areas suitable for a pleasant walk.
You can combine your visit with various outdoor activities. There are numerous hiking routes around Tienen, including trails that pass by or above some of these sites, like the Hill path which runs above an old quarry and caves. You can also find road cycling and MTB trails in the wider region.
Most of the grottoes are relatively small and can be explored in 30 minutes to an hour. If you combine a visit with a walk or hike on nearby trails, your total exploration time will naturally be longer, depending on the chosen route.
The grottoes and archaeological sites can be visited year-round. However, for combining your visit with outdoor activities like hiking, spring and autumn offer pleasant temperatures and beautiful scenery. Summer is also suitable, though it can be warmer.
Yes, the Hill path is a notable trail that leads above an old quarry and caves, offering views and running alongside an inaccessible nature reserve. This path provides a unique perspective on the underground features from above.
For the grottoes, comfortable walking shoes are generally sufficient. If you plan to explore nearby trails or the Hill path, sturdy footwear suitable for varied terrain is recommended. Dress in layers, as temperatures underground can be cooler than outside.


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