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Hiking trails & Routes

Flemish Brabant

Halle-Vilvoorde

The Sonian Forest – Ganzepoot Pond loop from Hoeilaart

Hiking trails & Routes

Flemish Brabant

Halle-Vilvoorde

The Sonian Forest – Ganzepoot Pond loop from Hoeilaart

Moderate

4.6

(56)

347

hikers

The Sonian Forest – Ganzepoot Pond loop from Hoeilaart

03:08

12.0km

80m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: April 2, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Bosreservaat Joseph Zwaenepoel

Nationaal Park Brabantse Wouden

Waypoints

A

Start point

Bus stop

Get Directions

1

697 m

The Sonian Forest

Highlight • Forest

Groenendaal station is also our gateway to the Sonian Forest. You can't miss it, the world's largest beech trees are here. Their trunks have diameters of up to 160 centimeters and some peaks up to 50 meters high in the air. They are often even more than two centuries old. Parts of this 'primeval forest' have been recognized as a UNESCO World Heritage Site. Together with the magical Hallerbos, which is covered every spring with a purple blanket of wild bluebells and the Meerdaalwoud-Dijle Valley, it is part of the Brabantse Wouden National Park. A valuable walking tip!

Translated by Google •

Tip by

2

1.71 km

Cornelius Chapel

Highlight • Religious Site

The Saint Cornelius Chapel on the Kloosterweg was built at the end of the 19th century and the saint was invoked against paralysis and falling disease. Pope Cornelius, who died as a martyr in 253, was told to heal a woman of paralysis. He was also venerated in the priory. The chapel stands between three lime trees. The place was called 'Lindekensboom' in 1688.

Translated by Google •

Tip by

3

2.21 km

Goose Pond in the Joseph Zwaenpoel Forest Reserve

Highlight • Lake

4

3.07 km

Nature Oasis Sonian Forest

Highlight • Forest

Natural oasis: wonderful to relax, with only forest sounds to hear

Translated by Google •

Tip by

5

3.25 km

Forest stream through a natural oasis

Highlight • Trail

Narrow path, small stream, fallen trees...cozy

Translated by Google •

Tip by

6

5.93 km

Bench in Nationaal Park Brabantse Wouden

Highlight • Rest Area

8.87 km

Bosreservaat Joseph Zwaenepoel

Nature Reserve

8

9.78 km

Ganzepoot Pond

Highlight • Lake

Why the Ganzepootvijver was called this, you can see on the map. The source area of the Ijse is also located here.

Translated by Google •

Tip by

9

10.9 km

Keizer Karelvijver Loop in Nationaal Park Brabantse Wouden

Highlight (Segment) • Trail

Pleasant segment of the GR Groene Gordel following the curves of the Keizer Karel pond

Tip by

B

12.0 km

End point

Bus stop

Way Types & Surfaces

Way Types

10.4 km

1.50 km

< 100 m

< 100 m

Surfaces

7.66 km

1.65 km

1.27 km

1.02 km

441 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

Powered by Foreca

Tuesday 7 July

27°C

16°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

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