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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

Hard

5.0

(3)

7

hikers

Natural Rock Tunnel near Bomal – Coléoptère Cave loop from Sy

05:16

18.3km

450m

Mountaineering

Hard mountaineering route. Very good fitness required. Mostly accessible paths. Sure-footedness required. The starting point of the route is accessible with public transport.

Last updated: August 5, 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

7.72 km

L'Aisne

Lake

3

8.38 km

Natural Rock Tunnel near Bomal

Highlight • Cave

Here you walk through a natural tunnel in the rocks.

Translated by Google •

Tip by

4

9.31 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

15.1 km

Château fort de Logne

Castle

15.9 km

Grotte du Rocher du Domaine de Palogne

Cave Entrance

7

17.4 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

17.5 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

17.6 km

View of the Ourthe Valley near Sy

Highlight • Viewpoint

Beautiful path on a hillside and great views.

Translated by Google •

Tip by

10

17.9 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

18.1 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

18.3 km

End point

Train Station

Way Types & Surfaces

Way Types

8.92 km

4.41 km

2.35 km

2.09 km

462 m

< 100 m

< 100 m

Surfaces

7.16 km

4.56 km

3.46 km

1.75 km

1.23 km

147 m

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Elevation

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Weather

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Wednesday 14 October

21°C

9°C

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