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Mountain Hikes
Belgium
Flanders
Flemish Brabant
Halle-Vilvoorde

Overijse

The best mountain hikes around Overijse

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Mountaineering around Overijse offers a diverse landscape characterized by dense woodlands and rolling hills within the broader Halle-Vilvoorde region. The terrain provides varied elevation changes suitable for mountaineering activities, with routes often traversing through established forest paths. This area is known for its natural beauty, providing a setting for outdoor exploration.

Best mountaineering routes around Overijse

  • The most popular mountaineering route is Drowned Children Ponds – Sonian Forest loop from Watermael-Boitsfort - Watermaal-Bosvoorde, a 5.2 miles (8.4 km) trail that takes 2 hours 15 minutes to complete. This moderate route explores the dense Sonian Forest.
  • Another top favourite among local mountaineers is Fourmilière loop from Walloon Brabant, a moderate 5.6 miles (9.1 km) path. This route offers varied terrain and takes approximately 2 hours 28 minutes.
  • Local mountaineers also love the Weertse Dreef, Meerdaal Forest – Warandedreef in Meerdaalwoud loop from Vaalbeek, a 10.1 miles (16.3 km) trail leading through Meerdaal Forest, often completed in about 4 hours 18 minutes.
  • Mountaineering around Overijse is defined by dense woodlands, rolling hills, and well-maintained forest paths. The network offers options for different ability levels, primarily focusing on moderate challenges.
  • The routes in Overijse are highly rated by the komoot community with an average score of 5.0 stars from over 1 review. More than 4 mountaineers have used komoot to explore Overijse's varied terrain.

Last updated: May 7, 2026

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#1.

Drowned Children Ponds – Sonian Forest loop from Watermael-Boitsfort - Watermaal-Bosvoorde

8.44km

02:15

90m

90m

Moderate mountaineering route. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

Moderate mountaineering route. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Moderate mountaineering route. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

5.0

(1)

1

hikers

Moderate mountaineering route. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

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Popular around Overijse

MTB Challenge – the Frans Claes route

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MTB Challenge – the Frans Claes route

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Tips from the Community

🇧🇪 Herwig Aertbeliën
March 11, 2026, Weertse Dreef, Meerdaalwoud

At a moderate speed you can fully enjoy the Brabantse Woud.

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The pretty lady with long, curly hair, carved into the bark of one of the beech trees, is a work of art dating from the late 1940s. It was created by a young man from the village, in love, as a tribute to his teenage sweetheart. The initials H M do not refer to the nearby town of Hamme-Mille, but rather to the initials of the young woman's first and last name. As a side note, this feeling remained unrequited.

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A solid wood bridge crosses the Horseshoe Pond, which is thus divided into two parts.

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Beautiful walking path through the Meerdaalwoud, which takes you through a long avenue of hundred-year-old beech trees.

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JP
April 11, 2025, Ad's Trail Sculptures

The arboretum in Heverlee is the starting point of the so-called path of Ad, which is no less than 26.2 km long, where you will discover forest figures by tree artist Ad Wouters in various places. Officially it is called: "Soft bears, mischievous gnomes, modern Neanderthals, metre-high mushrooms and other playful figures turn the Meerdaalwoud and the Heverleebos into real fairytale forests. The wooden sculptures are the work of local tree artist Ad Wouters and turn your walk into a fun quest full of wonder. Ad cuts the forest figures from the trunks of dead oaks." And you can find all the information at https://www.visitvlaamsbrabant.be/wandelen/vind-een-wandeling/het-pad-van-ad

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Narrow avenue at Meerdalwoud...

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The Meerdaalwoud is a vast forest area with a network of well-maintained trails that are ideal for mountain bikers. The Warandedreef is a major gravel road that winds through the heart of the Meerdaalwoud. It offers a unique combination of technical sections, fast straights and a number of tough climbs.

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A narrow footpath winds through the Sonian Forest and takes you past impressive beech trees that give the forest its characteristic green glow. The path is surrounded by dense vegetation, so you can fully immerse yourself in the peace and nature of this ancient forest. An ideal route for walkers who want to enjoy a piece of pure, untouched nature close to the city.

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Frequently Asked Questions

What are the typical difficulty levels for mountaineering routes around Overijse?

The mountaineering routes around Overijse primarily offer moderate challenges. All listed routes, such as the Drowned Children Ponds – Sonian Forest loop and the Fourmilière loop, are rated as moderate, making them suitable for those with some hiking experience.

How long do mountaineering routes around Overijse typically take?

Route durations vary, but most moderate mountaineering tours in Overijse can be completed within a few hours. For example, the Drowned Children Ponds – Sonian Forest loop takes approximately 2 hours 15 minutes, while the longer Weertse Dreef, Meerdaal Forest loop can take around 4 hours 18 minutes.

Are there parking facilities available near the trailheads?

Yes, many trailheads in the Overijse region, especially those leading into areas like the Sonian Forest or Meerdaal Forest, typically have designated parking areas nearby. It's advisable to check specific route details on komoot for precise parking information before you go.

Can I reach any mountaineering trailheads in Overijse using public transport?

While some areas around Overijse are accessible by public transport, direct access to all trailheads might be limited. For routes starting closer to urban centers, such as those near Watermael-Boitsfort, public transport options are generally better. We recommend checking local bus or train schedules for specific starting points.

Are there family-friendly mountaineering routes suitable for children?

Given that all routes are rated moderate, they are generally suitable for families with older children who are accustomed to longer walks. Shorter moderate routes, like the Drowned Children Ponds – Sonian Forest loop (5.2 miles), might be a good option for active families.

Are dogs allowed on the mountaineering trails around Overijse?

Generally, dogs are welcome on trails in the Overijse region, especially within the dense woodlands like the Sonian Forest and Meerdaal Forest. However, it's always best to keep them on a leash and adhere to local regulations, particularly in nature reserves or protected areas.

What routes are suitable for beginners in mountaineering?

For those new to mountaineering, the moderate routes around Overijse offer a good starting point. The Ad's Trail Sculptures loop from Vaalbeek is a moderate 4.9-mile (7.9 km) route with less elevation gain, making it a good option to build confidence.

When is the best time of year to go mountaineering in Overijse?

The region's dense woodlands and rolling hills make it enjoyable for mountaineering throughout much of the year. Spring and autumn offer pleasant temperatures and beautiful foliage, while summer provides longer daylight hours. Winter can also be scenic, but trails might be muddy or icy, requiring appropriate gear.

What can I see along the mountaineering routes around Overijse?

The routes often traverse through natural beauty spots. You might encounter interesting geological features like the Valley of the Artists (Wijnbrondal) or explore unique trails such as the Hollow Way and Steps Huldenberg. The region is characterized by its extensive forests and varied terrain.

Are there any circular mountaineering routes in Overijse?

Yes, many of the mountaineering routes around Overijse are designed as loops, offering a convenient way to explore without retracing your steps. Examples include the Drowned Children Ponds – Sonian Forest loop and the Weertse Dreef, Meerdaal Forest loop.

What do other mountaineers enjoy the most about mountaineering in Overijse?

The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the region's dense woodlands, rolling hills, and well-maintained forest paths, highlighting the natural beauty and varied terrain suitable for outdoor exploration.

Are there options for less crowded mountaineering routes?

While popular routes like those in the Sonian Forest can see more visitors, exploring trails in areas like Meerdaal Forest, such as the Weertse Dreef, Meerdaal Forest loop, might offer a more tranquil experience, especially during off-peak hours or weekdays.

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