Natural monuments around Glabbeek offer a variety of natural landscapes, from ancient forests to restored heathlands and river valleys. The region features several significant natural areas managed by Natuurpunt, providing diverse ecosystems for exploration. These areas, such as De Zeyp, Spikdoornveld, and the Paddenpoel within the Velpe Valley, showcase the natural beauty and conservation efforts in the Glabbeek area. Visitors can experience unique flora, fauna, and historical natural settings.
Last updated: May 1, 2026
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Highlight โข Religious Site
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Very relaxing, beautiful well-maintained paths.
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The core of Horst Castle probably dates back to the 13th century and is characterised by a square keep. The keep probably belonged to the oldest core that was further expanded into a fortified castle in the 15th century. During the troubles under Maximilian of Austria in 1489, the castle of Horst was taken by the people of Leuven and set on fire. According to literary sources, only the keep, part of the entrance gate and a defensive wall remained standing. The residential and east wing were renovated and expanded in the 16th century. The round tower also dates from this period. The outer wall was provided with a rectangular bay window. The castle lost its military character and became more of a pleasant residential area with a view of the moat, the ponds and the inner courtyard. Brick construction with sandstone layers characterise these buildings. In 1587, however, the castle was set on fire again during the raids of the Geuzen. It was not until the beginning of the 17th century that restoration work began. It is difficult to deduce from the available sources to what extent this involved restoration or an embellishing conversion of the castle complex. Presumably nothing changed in the internal structure, but only after the structurally necessary repairs were the interiors completely refinished. Maria-Anna Van den Tympel had a new chapel built against the keep in the 17th century. At the beginning of the 19th century, the complex must have been damaged by plundering and neglect, and it is possible that it also suffered from plundering during the Brabant Revolution of 1830. Around 1850, the castle must have been habitable again, but the castle buildings only served as a farm. In the land registry, the site around the castle is called "De Notelaren Boomgaerd". Around that time, the most dilapidated part must have been demolished, namely the southern part and the superstructure of the gate. The rest of the complex was probably restored with reused demolition material and in traditional style. The castle was divided in 1880, with one part being registered as a school house. In 1897, a further division followed, with two plots being designated as houses. Several restoration campaigns followed in the 20th century. Inventory of Immovable Heritage: Horst Castle, https://id.erfgoed.net/erfgoedobjecten/43619
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Since December, there has been a spire on the castle again after the unstable spire was removed more than four years ago and could be viewed on a wooden platform in the pond. Now it is back. And the other works are also progressing quickly. More about the replaced spire on https://www.vrt.be/vrtnws/nl/2024/12/10/torenspits-staat-weer-op-kasteel-van-horst-holsbeek/
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Through nature reserve Koebos where you are here or one of the other nature reserves in the valley of the Molenbeek. Chalky soil with lots of mistletoe in the trees. More about Koebos on https://www.komoot.com/nl-nl/highlight/2666792
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Between Bierbeek and Lubbeek lies the Koebos, a beautiful old oak forest with beautiful spring flora. Mineral-rich spring zones in the valley provide remarkable plants. You can also enjoy a lovely walk in the impressive castle park. Since the Koebos acquired the status of nature reserve, the diversity of species has increased enormously. Hay meadows with meadowsweet, cuckoo flower and cuckoo flower have appeared. In the spring, the forest is coloured by the celandine and wood anemone, later followed by the Solomon's seal, the beetle orchid and the broad-leaved wasp orchid. Source: https://www.natuurpunt.be/natuurgebieden/koebos Characteristics of the Koebos also include its location in the Molenbeek valley: a calcareous soil, as evidenced by the many mistletoes and the giant horsetail.
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For those who have traded in their horse for a steel steed. Information boards and such on site.
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Beautiful but swampy forest. In rainy periods boots are a must!
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Glabbeek offers diverse natural landscapes. You can explore the ancient forests and marshy woodlands of De Zeyp, known for its rich flora and fungi. Spikdoornveld features successfully restored heathland with rare species like the Mountain Night Orchid. The Paddenpoel, located in the Velpe Valley, boasts beautiful tall oat grass meadows and unique lean grasslands, serving as a breeding ground for various birds. Additionally, Lake Het Vinne is Flanders' only natural inland lake, ideal for migratory birds and nature walks.
Yes, the region combines natural beauty with historical significance. Horst Castle, a 13th-century moated castle, is nestled between the Hagelands hills and surrounded by a large pond, offering a picturesque historical site within a natural setting. The Calvary forest also features a historical calvary group at its summit and a unique 'witches' circle' formed by beech trees.
Glabbeek's natural areas showcase a variety of ecosystems. You'll find ancient forests, marshy woodlands, and spring forests with unique flora in areas like De Zeyp. Spikdoornveld offers restored heathland environments. The Paddenpoel and Velpe Valley feature diverse grassland ecosystems, including tall oat grass meadows and lean grasslands, alongside the meandering Velpe river. The Koebos Nature Reserve is a beautiful old oak forest with rich spring flora and mineral-rich spring zones.
Many of Glabbeek's significant natural areas, such as De Zeyp, Spikdoornveld, and the Paddenpoel, are managed by Natuurpunt, a nature conservation organization. These areas demonstrate successful restoration efforts, like the heathland at Spikdoornveld, which has led to the discovery of many new rare species. Effective management at the Paddenpoel also preserves rare plant species and provides a breeding ground for birds.
Yes, the region offers various hiking opportunities. While specific trails for each natural monument are not detailed, the Running Trails around Glabbeek guide includes routes like the 'Paddepoel Nature Reserve loop from Bunsbeek' which is moderate. The Calvary forest involves a short but steep climb, while Koebos Nature Reserve offers lovely walks through an old oak forest.
Beyond hiking, Glabbeek offers opportunities for cycling and mountain biking. You can find various routes in the Cycling around Glabbeek guide, including a 'Castle of Attenrode โ Paddepoel Nature Reserve loop'. For mountain biking enthusiasts, the MTB Trails around Glabbeek guide features routes like the 'Jordaan Valley โ Fandosepad loop from Bunsbeek'.
Many natural monuments around Glabbeek are suitable for families. Horst Castle is considered family-friendly, and its grounds are open for exploration. Lake Het Vinne offers a playground, play forest, sensory experience path, and adventurous hiking trails. The Koebos Nature Reserve and Nature Oasis Chartreu-Zen Forest are also noted as family-friendly, providing pleasant environments for walks and relaxation.
Dogs are generally allowed on the castle grounds of Horst Castle, but not inside the castle itself. For other natural areas, it's advisable to check local regulations or signage, as policies can vary. Many nature reserves managed by Natuurpunt typically welcome dogs on a leash, but specific rules for areas like De Zeyp, Spikdoornveld, and the Paddenpoel should be confirmed on-site.
Yes, parking is available at several natural monuments. Horst Castle and the Nature Oasis Chartreu-Zen Forest both have parking facilities. For other areas like the Paddenpoel, while not explicitly listed in the guide data, fan-out queries suggest visitors often look for parking, implying options may exist nearby or at designated entry points.
The best time to visit Glabbeek's natural monuments largely depends on your interests. Spring is ideal for witnessing the rich spring flora in forests like De Zeyp and Koebos Nature Reserve. Summer offers lush greenery and pleasant conditions for walking. Autumn is excellent for fungi spotting in De Zeyp and enjoying the changing colors of the woodlands. The provincial domain Het Vinne is accessible every day from sunrise to sunset, making it a year-round destination.
Yes, some natural monuments offer accessibility features. Lake Het Vinne is noted for its accessibility, providing two all-terrain wheelchairs and slings free of charge to visitors. While Horst Castle is beautiful to view, access for wheelchair users and buggies into the castle itself is difficult, though the grounds are more manageable.
Yes, you can find options for refreshments. At Horst Castle, the Brasserie Wagenhuis is located on-site, offering a convenient stop for food and drinks. For other natural areas, while not directly adjacent, nearby villages and towns will have cafes and pubs, especially in the vicinity of popular spots like the Paddenpoel.


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