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Mountain hikes & routes

Natural Rock Tunnel near Bomal – Coléoptère Cave loop from Sy

Mountain hikes & routes

Natural Rock Tunnel near Bomal – Coléoptère Cave loop from Sy

Moderate

5.0

(4)

9

hikers

Natural Rock Tunnel near Bomal – Coléoptère Cave loop from Sy

04:32

15.7km

380m

Mountaineering

Moderate mountaineering route. Good fitness required. Mostly walkable paths. Sure-footedness required. The starting point of the route is accessible with public transport.

Last updated: November 3, 2026

Waypoints

A

Start point

Train Station

1

326 m

Sy Bridge

Highlight • Bridge

A simple iron bridge with a low head height.

Translated by Google •

Tip by

5.04 km

L'Aisne

Lake

3

5.71 km

Natural Rock Tunnel near Bomal

Highlight • Cave

Here you walk through a natural tunnel in the rocks.

Translated by Google •

Tip by

4

6.63 km

Coléoptère Cave

Highlight • Cave

The cave of "Coléoptére" Juzaine (Bomal) van Guide to Marcourt and its surroundings
The cave of the "Coléoptère" in Juzaine - Bomal is classified among the most interesting caves in …

Translated by Google •

Tip by

12.5 km

Château fort de Logne

Castle

13.2 km

Grotte du Rocher du Domaine de Palogne

Cave Entrance

7

14.8 km

View from the summit of the Rochers de Sy

Highlight • Viewpoint

see and enjoy. The difficult ascent is rewarded with a great view.

Translated by Google •

Tip by

8

14.9 km

Sy Rocks

Highlight • Natural Monument

The Rochers de Sy are a succession of rocky outcrops stretching over several hundred meters above the Ourthe. Be careful, it's dizzying, but the view is spectacular!

Translated by Google •

Tip by

9

14.9 km

View of the Ourthe Valley near Sy

Highlight • Viewpoint

Beautiful path on a hillside and great views.

Translated by Google •

Tip by

10

15.3 km

View over the Ourthe Valley from Sy

Highlight • Viewpoint

One of many beautiful vantage points with valley views.

Translated by Google •

Tip by

11

15.4 km

Ridge Trail above Sy

Highlight • Trail

The ascent, a narrow nature trail, is lined with blooming wild garlic at the beginning of May.

Translated by Google •

Tip by

B

15.7 km

End point

Train Station

Way Types & Surfaces

Way Types

6.71 km

3.32 km

3.26 km

2.10 km

258 m

< 100 m

Surfaces

4.73 km

4.68 km

3.18 km

1.47 km

1.25 km

167 m

159 m

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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 3 November

9°C

3°C

0 %

Additional weather tips

Expect light wind and shifting conditions.

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