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Routes
Belgium
Wallonia
Walloon Brabant
Nivelles
Braine-L'Alleud

Grasdelle Trail Clearing – Zonienwald (Sonian Forest) loop from Lillois

Routes
Belgium
Wallonia
Walloon Brabant
Nivelles
Braine-L'Alleud

Grasdelle Trail Clearing – Zonienwald (Sonian Forest) loop from Lillois

Hard

4.7

(3)

235

riders

Grasdelle Trail Clearing – Zonienwald (Sonian Forest) loop from Lillois

05:10

87.0km

800m

Gravel riding

Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route. The starting point of the route is accessible with public transport.

Last updated: March 28, 2026

Tips

Includes a segment in which cycling is not permitted

After 50.3 km for 220 m

Waypoints

A

Start point

Train Station

Get Directions

6.44 km

Bois du Moulin

Forest

8.70 km

Ligne KW

Ruins

15.6 km

Hallerbos - Bois de Hal

Forest

4

31.8 km

Great forest path

Highlight • Trail

I wouldn't describe it as a single track because it's too wide in front, but it's a nice fast driving trail with gravel surface. So also ideal for gravel bikes.

Translated by Google •

Tip by

5

36.6 km

This is the monument to the fallen forest rangers in the First World War.

Translated by Google •

Tip by

6

37.0 km

Grasdelle Trail Clearing

Highlight • Forest

Quiet and enjoyable resting spot along Sentier de Grasdelle - Grasdellepad

Tip by

7

42.9 km

Zonienwald (Sonian Forest)

Highlight • Forest

The Sonian Forest, also known as the Zoniënwoud, is a large forest area centrally located in Belgium, southeast of Brussels. It covers approximately 4,421 hectares and is best known for …

Translated by Google •

Tip by

8

44.4 km

grave single track, one to remember

Translated by Google •

Tip by

9

47.5 km

Forest Path

Highlight • Trail

The routes vary from gentle flats to gentle climbs, ideal for a refreshing ride. In spring, flowers bloom along the paths, while autumn transforms the forest into a colourful palette of gold and red.

Translated by Google •

Tip by

49.4 km

Réserve naturelle des Trois Fontaines - Natuurreservaat Dry Borren

Nature Reserve

11

50.1 km

Rouge-Cloître Lake

Highlight • Lake

Beautiful place. There’sa little bar to have a drink.

Tip by

50.5 km

Réserve naturelle du Rouge-Cloître - Natuurreservaat van het Rood Klooster

Nature Reserve

63.0 km

Koningsvijvers

Lake

14

68.6 km

Château de La Hulpe

Highlight • Castle

Castle in a beautiful large park... Beautiful hedges and ivy give it a green tint...

Translated by Google •

Tip by

B

87.0 km

End point

Train Station

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Way Types & Surfaces

Way Types

56.4 km

17.6 km

5.44 km

4.08 km

3.24 km

170 m

< 100 m

Surfaces

35.0 km

22.1 km

16.4 km

9.70 km

3.75 km

< 100 m

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Elevation

Elevation

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

Highest point (150 m)

Lowest point (60 m)

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Weather

Powered by Foreca

Saturday 4 April

14°C

6°C

33 %

Additional weather tips

Max wind speed: 29.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Sonian Forest and Château de La Hulpe Loop

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