Heyoule Nature Reserve – Marlstone cave loop from Eben-Emael

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Hiking trails & Routes

Heyoule Nature Reserve – Marlstone cave loop from Eben-Emael

Moderate

4.1

(15)

hikers

Heyoule Nature Reserve – Marlstone cave loop from Eben-Emael

03:34

13.3km

160m

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: August 20, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Réserve naturelle Heyoule

Waypoints

Start point

Bus stop

Get Directions

4.18 km

Eben-Ezer Tower and Silex Museum

Highlight • Monument

This remarkable structure is the life's work of one man, Robert Garcet. In 1953, the first walls rose from the ground, and ten years later, the building was completed. Beneath …

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11.1 km

Ancienne carrière de Pirpagnet

Forest

11.4 km

Heyoule Nature Reserve

Highlight • Natural

The underground tunnels made of tuff and flint, a refuge for the inhabitants during the wars, are inhabited by several colonies of bats during the winter. But thanks to the …

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11.5 km

Marlstone cave

Highlight • Cave

This is the first accessible marlstone cave on the nature trail from the direction of Eben-Emael. A flashlight is required here, as daylight disappears after about 20 meters.

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11.6 km

Bat refuge

Highlight • Cave

This cave is not accessible and serves as a "retreat" for bats.

The following caves along the hiking trail are all accessible.

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11.7 km

Moulin de L'Ava Path

Highlight • Trail

A nice one next to a hedge, on the way to the Geer...

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11.9 km

Narrow Path

Highlight • Trail

Nice when the paths become a bit narrower...

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12.1 km

Bridge Over the Geer Stream

Highlight • Bridge

This bridge is necessary to cross the Geer...

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12.2 km

Geer Stream Valley

Highlight (Segment) • River

Beautiful, how green and rolling it can be...

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13.3 km

End point

Bus stop

Way Types & Surfaces

Way Types

4.88 km

4.21 km

2.48 km

1.61 km

Surfaces

4.36 km

3.73 km

1.83 km

1.73 km

1.42 km

117 m

Elevation

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

Highest point (140 m)

Lowest point (60 m)

Weather

Today

Monday 12 October

19°C

12°C

59 %

Additional weather tips

Max wind speed: 21.0 km/h

to get more detailed weather forecasts along your route

Comments

August 13, 2023,Runde d'Eben-Ezer (Musée du Silex)

Tour involuntarily led through a motorcross area 🙄

Showing Translation

August 20, 2024,20/08/2024 - Randonnée matinale - reconnaissance Wonck -tour Eben Ezer - 17.4 kms

Start of the trail:
rue champs des courses
4690 Wonck
start towards ravel
marking: green rectangle and yellow cross

Showing Translation

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Heyoule Nature Reserve – Marlstone cave loop from Eben-Emael

Eben-Ezer Tower and Silex Museum

Heyoule Nature Reserve

Marlstone cave

Bat refuge

Moulin de L'Ava Path

Narrow Path

Bridge Over the Geer Stream

Geer Stream Valley

Nearby routes

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