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Fondry des Chiens Gorge – View of the Viroin Valley loop from Olloy-sur-Viroin

Routes

Hiking trails & Routes

Fondry des Chiens Gorge – View of the Viroin Valley loop from Olloy-sur-Viroin

Hard

4.8

(12)

hikers

Fondry des Chiens Gorge – View of the Viroin Valley loop from Olloy-sur-Viroin

05:39

20.1km

390m

Hiking

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: June 28, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Fondry des Chiens

Parc national de l’Entre-Sambre-et-Meuse

Parc naturel Viroin Hermeton

Waypoints

Start point

Train Station

Get Directions

3.00 km

Dourbes Tunnel

Highlight • Structure

Known on the map as "Tunnel des Dourbes". Where Dourbes refers to the Réserve naturelle de Dourbes". On the mountainside that you can climb with some beautiful steps you also …

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5.06 km

Les Abannets

Nature Reserve

5.73 km

Nismes Castle

Highlight • Castle

5.89 km

Moulin Guillaume

Highlight • Monument

This water mill, located downstream of the 'Zwarte Water' and below the Mousty mountain, was mentioned in 1609 as a ban mill: the local residents were obliged to have their …

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6.27 km

Viewpoint "Pont d'Avignon"

Highlight • Viewpoint

Here in the arboretum of Nismes there is an official viewpoint above the Pont d'Avignon, where you can look out over Nismes, its church and the castle.

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6.41 km

Mousty Arboretum

Highlight • Forest

The Mousty arboretum was planted in the last century by a forestry engineer who wanted to test different tree species for the limestone region. Today you can admire more than …

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9.60 km

Grottes de Neptune

Cave Entrance

13.1 km

Eau Noire River in Nismes

Highlight • River

The Eau Noire is a source river of the Viroin that rises at Cul-des-Sarts in the extreme south of the province of Namur at an altitude of 350 meters. Shortly …

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14.0 km

Fondry des Chiens Gorge

Highlight • Gorge

Near the town of Nismes, the Viroin-Hermeton Nature Park is home to an exceptional nature reserve. A narrow gorge, up to 20 meters deep, is home to a biotope rich …

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17.6 km

Viroin

Lake

18.6 km

View of the Viroin Valley

Highlight • Viewpoint

Actually, you are here in the "Réserve naturelle de Dourbes". A beautiful nature reserve located in the valley of the Eau Blanche and the Eau Noire. The area is known …

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Tip by

20.1 km

End point

Train Station

Way Types & Surfaces

Way Types

9.29 km

7.23 km

1.79 km

1.77 km

< 100 m

Surfaces

12.1 km

2.37 km

2.22 km

1.80 km

1.40 km

298 m

Elevation

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

Highest point (240 m)

Lowest point (140 m)

Weather

Sunday 12 July

32°C

16°C

0 %

Additional weather tips

Max wind speed: 17.0 km/h

to get more detailed weather forecasts along your route

Comments

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Fondry des Chiens Gorge – View of the Viroin Valley loop from Olloy-sur-Viroin

Dourbes Tunnel

Nismes Castle

Moulin Guillaume

Viewpoint "Pont d'Avignon"

Mousty Arboretum

Eau Noire River in Nismes

Fondry des Chiens Gorge

View of the Viroin Valley

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