Natural monuments around Silly are found within the municipality in Hainaut, Belgium, and its surrounding areas, offering diverse natural features. The region includes extensive woodland areas, such as Natura 2000 sites, and protected heritage valleys. These locations preserve significant ecological habitats and provide opportunities to experience local natural landscapes. The varied terrain encompasses forests, valleys, and natural reserves.
Last updated: June 28, 2026
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The Enghien park (or the Arenberg Estate) is a 182-hectare estate located in the Belgian municipalities of Enghien and Silly[1], created between 1630 and 1665 by the Arenberg family. Acquired by the municipality in 1986, it is now accessible to the public. An exceptional green space, it is dotted with bodies of water, gardens, and buildings covering nearly 400 years of history.
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The Research Institute for Nature and Forest (INBO) has a 30-hectare research center in Grimminge (Geraardsbergen), around the Helix, the Flemish Knowledge and Training Center for Nature and the Environment. The research center is not only a research site but also houses several collections of rare native tree and shrub species, which contribute to the conservation of genetic diversity. The research center houses several "populeta." A populetum is a collection of living poplars. The poplars in this populetum belong to the North American species Populus deltoides and Populus trichocarpa, and to the European black poplar (Populus nigra), forming a unique collection in Europe. These poplars were used in the INBO breeding program to create healthy trees with rapid growth, straight trunks, and excellent wood quality for the wood-processing industry. (INBO)
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The Raspaillebos has five marked walks: Natural Gas Walk (7.7 km), Farmland Landscape (4 km), Raspaillebos Walk (3.7 km), Window on the Landscape (2.5 km), and Bosberg Walk (2 km). (Agency for Nature & Forests)
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Beautiful little castle and beautiful large park.
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Beautiful little lake, the path leading to it is full of nettles, long trousers are useful
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Hello to all Komoot users, Le Grand Bois Commun (SC) is a cooperative in Braine-le-Comte. www.legrandboiscommun.be In 2019, just under 2,000 citizens purchased this 80 hectares of forest for protection. Recently, approximately 75% of its surface area was declared a Nature Reserve. Please be sure to stay on the paths and keep dogs on leashes. The cooperative remains open to new members. info@legrandboiscommun.be 🌳🌳Welcome🌳🌳
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Many paths take you through the forest, especially the paths to them are a wonderful experience...
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The region around Silly offers a diverse range of natural monuments, including extensive woodlands like the Bois d'Enghien et de Silly, protected heritage valleys such as the one at "L'Ermitage," and unique forest areas like the Raspaille Forest with its undulating terrain and vibrant spring flora. You'll also find serene lakes like the Pond of Le Grand Bois Commun and nature reserves like Prés Rosières Nature Reserve.
Yes, several natural monuments around Silly are suitable for families. The Raspaille Forest is great for walks, especially in spring, and the Ter Rijst Castle Estate offers a landscape park with maintained trails and ponds that families can enjoy. The Populetum, a unique collection of poplars, also provides an interesting and accessible natural setting for all ages.
The natural monuments around Silly are rich in biodiversity. In the Bois d'Enghien et de Silly, a Natura 2000 site, you might spot protected bird species such as the Middle Spotted Woodpecker, Black Woodpecker, and Honey Buzzard. The Raspaille Forest is home to diverse fauna, including rare woodland butterflies and the fire salamander. The ice cellar at Ter Rijst Castle Estate now serves as a bat habitat, and its pond contains pike.
Absolutely. The Ter Rijst Castle Estate is a prime example, featuring a castle with medieval origins, remains of an old Roman highway, and a landscape park. The Raspaille Forest also has historical connections, having provided shelter to rebels in the 14th century and being known for its traditional coppice management.
The area around Silly offers various outdoor activities. You can find numerous hiking trails, such as the 'Saint-Marcoult – Bois de Silly loop' or the 'Provision Wood – Chemin Royal in Lombise loop.' For cycling enthusiasts, there are gravel biking routes like the 'Old Lock – Chapel of Fièvres loop' and MTB trails including the 'Provision Wood – Thoricourt Castle loop.' You can explore more options in the Hiking around Silly, Gravel biking around Silly, and MTB Trails around Silly guides.
The best time to visit depends on your interests. Spring is particularly vibrant in the Raspaille Forest, when wild daffodils, wood anemones, and bluebells are in full bloom. Summer offers a cool escape in the dense woodlands like Bois d'Enghien et de Silly. Autumn brings beautiful foliage, and even winter can be appealing for quiet walks, though some paths might be muddy, especially around the Pond of Le Grand Bois Commun.
Yes, the Raspaille Forest offers panoramic views over the Dender and Mark Valleys from the top of the Bosberg hill. Additionally, the hillsides of Prés Rosières Nature Reserve, covered with mixed deciduous woods, provide magnificent views of the surrounding landscapes.
The Bois d'Enghien et de Silly is an extensive woodland area recognized as a Natura 2000 site, highlighting its significant ecological importance. It features diverse ecosystems, including Atlantic acidophilous beech forests and alluvial forests, which support a variety of protected bird species and unique mosses and liverworts. It's a crucial area for biodiversity preservation and offers a tranquil natural experience.
While many natural areas are dog-friendly, it's important to check specific regulations for each site. For instance, at the Pond of Le Grand Bois Commun, visitors are asked to keep dogs on leashes to protect the nature reserve. Always ensure your dog is under control and follow local guidelines to preserve the natural environment.
The Prés Rosières Nature Reserve is a unique bi-community reserve located along the Marcq river, recognized as a Natura 2000 zone by both the Walloon and Flemish Regions. Covering 80 hectares, it was established in 1987 and is managed by nature protection associations. It offers beautiful landscapes, quiet contemplation, and is an important habitat for various species.
Yes, the region is home to several unique features and conservation efforts. The Populetum in Grimminge is a unique collection of living poplars, including North American and European species, used for research in genetic diversity and wood quality. The Pond of Le Grand Bois Commun is part of an 80-hectare forest purchased by a cooperative for protection, with a significant portion now declared a Nature Reserve.
Visitors appreciate the diverse natural environments, from the rich biodiversity and historical connections of the Raspaille Forest to the tranquil settings of the Bois d'Enghien et de Silly. The combination of maintained trails and wilder forest environments, such as at Ter Rijst Castle Estate, is also highly valued. The opportunity for quiet walks, birdwatching, and enjoying vibrant seasonal flora are frequently mentioned highlights.


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