Best natural monuments in Brussels include significant green spaces that serve as vital natural lungs within this urban center. The region features ancient forests, expansive parks, and serene lakes, offering ecological importance and recreational value. These areas provide opportunities to connect with nature and explore diverse landscapes. Brussels is known for its diverse natural monuments, including ancient forests, serene lakes, and expansive urban parks.
Last updated: May 13, 2026
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Beautiful garden, simply a feast for the eyes
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Here we see a watercourse, which is enough for a beaver. If the beaver builds a dam here, it can become a pond or a lake in two or three years. The animal can change an entire ecosystem, simply because its dam retains water and rain. These natural beaver dams are very efficient in combating floods and droughts, because they regulate the flow of small watercourses. Locally, they can shape the forest through flooding by flooding parts of the forest, causing the tree vegetation to die. When the beavers leave their dam and their beaver pond, a succession from pioneer forest to climax forest can start again after the reservoir has drained.
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Here we see a stream. For a beaver, that's enough. If the beaver builds a dam here, in two or three years it might be a pond or a lake. The animal can change an entire ecosystem simply because its dam holds back water and rain. These natural beaver dams are very effective in controlling floods and droughts because they regulate the flow of small streams. Locally, they can shape the forest by flooding parts of the forest, which causes the vegetation to die. When the beavers leave their dam and pond, a succession from pioneer forest to climax forest can resume after this reservoir dries up.
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Here we see a course of water. For a beaver this is enough. If the beaver builds a dam here, in two or three years from now this could be a pond or a lake. The animal can change an entire ecosystem just because its dam would hold water and rain. These natural beaver dams are very efficient to combat floods and droughts, as they regulate the flow of small watercourses. Locally, they can shape the forest by flooding parts of the forest causing the tree vegetation to die. When the beavers leave their dam and pond, a succession from pioneer forest to climax forest can start growing again after this reservoir has been drained.
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On the occasion of the 50th anniversary of the independence of Belgium and at the same time as the World Exhibition, King Leopold II had the Jubilee Park (Parc du Cinquantenaire) built in 1880. The architect Gédéon Bordiau drew up the plans. The intention was to create a green area with pavilions for various exhibitions. The triumphal arch (arcade) connects two wings covering a total area of 30 hectares. Note the beautiful symmetry of the French and English-inspired gardens, the lawns and the wide avenues.
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Today, the Botanical Garden is a city park wedged into the traffic network of the Brussels North District. All that remains of its original purpose as a botanical garden is the mix of styles (French, Italian and English) and the great variety of trees and plants. The park, which extends over 6 hectares and is laid out in terraces, was officially opened in 1829. The highest terrace, at the foot of the orangery, is geometric in shape, like the classic French gardens. The mezzanine is in the Italian style and includes a star-shaped rose garden and an iris garden where around forty varieties of iris bloom from April to June – the iris is the symbol of the Brussels-Capital Region. The lowest part slopes gently down to the pond, with winding paths. The lawns are dotted with trees around resting places. Source: https://gardens.brussels/nl/groene-ruimten/kruidtuin
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Fun thing is to try and run all paths in the park during one session. Not always only the outer ring which everyone runs
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Beyond the well-known Sonian Forest, you can explore the serene Drowned Children Ponds, a nature reserve within the forest, perfect for peaceful observation. Another favorite is the Lake in the Bois de la Cambre, a picturesque spot ideal for cyclists and walkers, featuring Robinson Island. The Woluwe Park, one of the capital's largest, offers diverse trees and a rugged, English-inspired relief.
Brussels' natural monuments offer beauty year-round. Spring brings blooming flora, while summer is ideal for picnics and outdoor activities in parks like Bois de la Cambre. Autumn transforms the Sonian Forest into a spectacle of colors, making it a popular time for walks. Even in winter, the quiet, snow-dusted landscapes can be very atmospheric.
Yes, many natural monuments in Brussels are excellent for families. The Sonian Forest and Woluwe Park are great for walks and exploring. The Lake in the Bois de la Cambre offers wide paths and Robinson Island, accessible by electric boat, which is a fun experience for children. The Cinquantenaire Park (Jubelpark) also provides ample space for play and relaxation.
Brussels' natural monuments showcase a variety of features. You'll find ancient beech trees and diverse biodiversity in the Sonian Forest, including over 40 species of mammals and 132 bird species. Parks like Bois de la Cambre feature large artificial lakes with islands, while Parc de Bruxelles boasts formal gardens, fountains, and sculptures. Areas like Drowned Children Ponds are nature reserves with multiple ponds.
Absolutely. The Sonian Forest includes parts recognized as a UNESCO World Heritage site, part of the Ancient and Primeval Beech Forests of Europe, highlighting its long history. The Cinquantenaire Park (Jubelpark) was built for the 50th anniversary of Belgian independence and features a triumphal arch and museums. Parc de Bruxelles, with its neoclassical design, has origins tracing back to medieval hunting grounds and witnessed events of the Belgian Revolution.
Many of Brussels' natural monuments are accessible by public transport. The Sonian Forest has various entry points, some reachable by tram or bus. Bois de la Cambre and Parc de Bruxelles are centrally located and well-served by trams, buses, and metro lines, making them easy to get to from anywhere in the city.
Near Brussels' natural monuments, you can enjoy a range of outdoor activities. For hiking, explore routes like the 'Alsemberg Meadow – Begijnenbos loop' or 'Paper mill Herisem – Alsemberg Meadow loop' mentioned in the Waterfall hikes in Brussels guide. Cycling enthusiasts can find routes like 'Four-arm bicycle bridge – Leuven Town Hall loop' in the Cycling in Brussels guide. For mountain biking, check out trails like 'Grasdelle Trail Clearing – Grippensdelle MTB Singletrack loop' in the MTB Trails in Brussels guide.
Yes, the Waterfall hikes in Brussels guide features several trails near natural areas. For example, you can find moderate hikes like the 'Alsemberg Meadow – Begijnenbos loop' or the 'Paper mill Herisem – Alsemberg Meadow loop'. These trails offer a chance to explore the varied terrain and natural beauty surrounding Brussels' green spaces.
Many natural monuments and parks in Brussels are dog-friendly, though specific rules may apply regarding leashes or designated off-leash areas. The Sonian Forest and Bois de la Cambre are popular spots for dog walkers, offering extensive paths and green spaces for your canine companions to enjoy.
You'll find various options for refreshments near Brussels' natural monuments. Bois de la Cambre, for instance, has the Chalet Robinson restaurant on its island. Parc de Bruxelles is in the city center, surrounded by numerous cafes and restaurants. For the Sonian Forest, specific entry points like Rouge-Cloître and Groenendael often have nearby establishments or kiosks.
While not entirely 'hidden,' areas like the Vuylbeek Nature Reserve offer a more secluded experience within the larger Sonian Forest. The Jette Marsh is another lesser-known natural monument that provides a unique ecological environment for exploration, offering a different perspective than the more manicured parks.
The Sonian Forest is particularly rich in wildlife, home to over 40 species of mammals, including deer, wild boar, and various rodents, as well as 132 bird species. You might also spot numerous reptiles, amphibians, and insects. Even urban parks like Bois de la Cambre and Parc de Bruxelles host a variety of birdlife and smaller mammals, especially around their water features.


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