Best natural monuments around Hergnies offer diverse natural landscapes, characterized by wetlands, forests, and historical geological features. The region is part of the broader Scarpe-Escaut Regional Nature Park, providing a rich environment for various flora and fauna. These sites are notable for their ecological significance and provide opportunities for outdoor activities. Hergnies' natural monuments are primarily composed of marshlands and ponds, often resulting from historical mining subsidence.
Last updated: May 4, 2026
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The Pierre Brunehault, located in Brunehaut near Tournai, is an impressive megalith and one of the largest and oldest menhirs in Belgium. This mysterious stone, over four metres high, dates back to prehistoric times and has been the subject of stories and legends about its origins and meaning for centuries.
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Ornithological nature reserve, with magnificent species. Several observation points set up for bird watching. accessible to PMR.
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Very mobile with magnificent view of the gorial pond
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There are two viewing huts on the route. But especially many ornithologists. This must clearly be a special place!
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Rarely seen so many ornithologists together. Each with their big, long cameras!
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Located in the heart of the Haine valley, between Mons and Tournai, the marshy complex of Harchies-Hensies-Pommeroeul, better known as the Marais d'Harchies, is a major site for the fauna and flora of Wallonia. Covering an area of 550 hectares, this site of great biological interest is home to many species and constitutes an important transit site during bird migration and offers ideal conditions for the nesting and wintering of numerous species. Its registration as a “Ramsar” wetland confirms its importance on an international scale. https://oiseaumaraisdharchies.be/
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Visitors frequently enjoy the diverse natural landscapes. Among the most popular are Goriaux Pond, a significant mining subsidence pond and national biological reserve, and Étang Chabaud-Latour, known for its rich natural environment and bird species. Another highly appreciated site is the Marais d'Harchies-Hensies-Pommerœul Nature Reserve, a vast reed-covered marshland important for Wallonia's fauna and flora.
Yes, several natural monuments around Hergnies are suitable for families. Goriaux Pond and Étang Chabaud-Latour are both marked as family-friendly, offering pleasant walks and opportunities to enjoy nature. The Les Catillons area, part of the larger Marais d'Harchies, also welcomes families to explore its natural beauty.
The natural monuments around Hergnies are characterized by wetlands, lakes, and historical geological features, often resulting from mining subsidence. You'll encounter expansive marshlands, such as the Marais d'Hergnies, and serene ponds like the Étang d'Amaury. These areas are rich in biodiversity, offering habitats for numerous bird species and diverse flora.
The region around Hergnies is excellent for various outdoor activities. You can enjoy hiking, gravel biking, and mountain biking. For example, there are numerous hiking routes like the "Bassin d'Amaury – Étang d'Amaury loop" and several gravel biking and MTB trails that often pass by or through these natural sites. You can find more details on routes in the Hiking around Hergnies, Gravel biking around Hergnies, and MTB Trails around Hergnies guides.
Yes, the region's natural monuments often have a rich history tied to mining. Many ponds and marshlands, like Goriaux Pond, were formed by mining subsidence. Additionally, you can find the Menhir of Pierre Brunehault, an impressive megalith and one of Belgium's largest and oldest menhirs, offering a glimpse into prehistoric times.
The natural monuments, especially the marshlands and ponds, are particularly vibrant during spring and autumn. These seasons offer excellent birdwatching opportunities as many species use the Marais d'Hergnies as a transit and nesting site during migration. Winter can also be interesting for observing wintering birds, while summer provides pleasant conditions for walks and outdoor activities.
Some areas within the natural monuments are noted for their accessibility. For instance, the Marais d'Harchies-Hensies-Pommerœul Nature Reserve is listed as wheelchair accessible. It's advisable to check specific trail conditions for other sites, as terrain can vary.
While specific regulations can vary by site, many natural areas in France generally allow dogs on leashes. It's always best to check local signage or official websites for each specific natural monument, such as the Marais d'Hergnies or Site Nature d'Amaury, to ensure compliance with local rules regarding pets.
The region offers several walking routes, including circular options, that incorporate natural monuments. For example, the "Bassin d'Amaury – Étang d'Amaury loop" is a popular choice. You can explore various hiking routes, their distances, and difficulty levels in the Hiking around Hergnies guide, which often feature these natural sites.
Visitors frequently highlight the tranquility and rich biodiversity of the area. Many appreciate the opportunities for birdwatching, especially at sites like the Marais d'Harchies-Hensies-Pommerœul, and the peaceful walks around ponds such as Étang Chabaud-Latour. The well-appointed areas and picturesque landscapes make them ideal for connecting with nature and photography.
Absolutely. The Marais d'Hergnies is internationally recognized as a "Ramsar" wetland and is a crucial transit, nesting, and wintering site for numerous bird species. Similarly, the Étang Chabaud-Latour is a rich natural site attracting many birds, making both excellent spots for ornithologists and nature lovers.
The duration of your visit depends on the specific site and your planned activities. For a leisurely walk around a pond like Étang Chabaud-Latour, you might spend 1-2 hours. Exploring larger marshlands or combining a visit with a longer hiking or biking route could take half a day or more. Many sites offer varying loop lengths to suit different schedules.


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