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Routes
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Belgium
Flanders
Flemish Brabant
Halle-Vilvoorde
Hoeilaart

Nature Run Sonian Forest

Routes
Running trails & routes
Belgium
Flanders
Flemish Brabant
Halle-Vilvoorde
Hoeilaart

Nature Run Sonian Forest

Intermediate

4.7

(11)

226

runners

Nature Run Sonian Forest

01:27

13.3km

100m

Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: October 5, 2024

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Waypoints

A

Start point

Parking

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1

325 m

Keizer Karelvijver

Highlight • Lake

The Keizer Karelvijver is one of twelve ponds on the upper reaches of the IJse. They are fed by springs and by the river IJse that rises further in the …

Translated by Google •

Tip by

2

1.84 km

Groenendael Nature and Historic Pavilion

Highlight • Forest

Enjoy the lush green landscape here.

Translated by Google •

Tip by

3

12.4 km

Grazing area

Highlight • Natural

Next to the arboretum you will find the old Groenendaal practice track. Scottish highlanders now graze there, which you can best spot from the viewing platform.

Translated by Google •

Tip by

B

13.3 km

End point

Parking

Way Types & Surfaces

Way Types

8.96 km

4.08 km

117 m

107 m

Surfaces

8.28 km

3.19 km

1.49 km

172 m

144 m

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Elevation

Elevation

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Saturday 1 November

14°C

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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

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Nature Run Sonian Forest

01:27h

13.3km

100m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

4.6

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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Expert

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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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How to understand each route’s difficulty level

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Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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