Routes

Planner

Features

Updates

App

Get the App

Routes

Mountain biking trails

Fondry des Chiens Gorge – Dourbes Tunnel loop from Olloy-sur-Viroin

Routes

Mountain biking trails

Fondry des Chiens Gorge – Dourbes Tunnel loop from Olloy-sur-Viroin

Moderate

3.6

(8)

riders

Fondry des Chiens Gorge – Dourbes Tunnel loop from Olloy-sur-Viroin

03:39

38.9km

770m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 20, 2026

Tips

Cycling is not permitted along parts of this route

After 11.6 km for 212 m

After 16.7 km for 68 m

After 23.6 km for 60 m

After 25.6 km for 154 m

After 28.2 km for 110 m

After 32.8 km for 59 m

Waypoints

Start point

Train Station

Get Directions

15.0 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 …

Translated by Google •

Tip by

21.7 km

Réserve naturelle de Dourbes

Nature Reserve

23.0 km

Enduro Descent to the Tunnel (Olloy Side)

Highlight (Segment) • Trail

Nice descent, more or less technical but without major difficulties. Be careful though, at the finish, steps and stairs have been set up.

A less technical, shorter but perhaps steeper alternative exists in parallel.

Translated by Google •

Tip by

23.6 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 …

Translated by Google •

Tip by

24.5 km

Viroin

Lake

27.8 km

Archaeological Site

28.2 km

Quarry Prospèr

Highlight • Climb

“Carrière Prosper” is the name of the place that now houses around twenty climbing routes ranging from level 4C to 7A (more for experienced climbers). Adapting the quarry took around …

Translated by Google •

Tip by

30.8 km

View of Olloy from La Roche du PAS

Highlight • Viewpoint

The now tall trees obstruct the beautiful view...

Translated by Google •

Tip by

32.8 km

Roche Madoux

Nature Reserve

34.0 km

Vierves-sur-Viroin

Highlight • Settlement

The southern character prevails here in the centre in the valley, while outside the centre there are many panoramic views of the hills...

Translated by Google •

Tip by

38.9 km

End point

Train Station

Way Types & Surfaces

Way Types

19.7 km

11.0 km

4.22 km

3.86 km

146 m

Surfaces

18.0 km

6.24 km

5.71 km

4.45 km

4.26 km

310 m

Elevation

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

Highest point (320 m)

Lowest point (140 m)

Weather

Thursday 21 May

26°C

8°C

0 %

Additional weather tips

Max wind speed: 7.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Embed on a website

Report an Issue

Nearby routes

Hard

4.2

Between Meuse and Lesse - Province of Namur

02:29h

31.1km

430m

Hard

4.7

The Risdoux

02:39h

31.6km

500m

Hard

The Hermeton Valley - Province of Namur

01:46h

18.2km

370m

Moderate

4.5

400

Lake Viewpoint – View of the Eau d'Heure Dam loop from Walcourt

03:16h

54.7km

430m

Hard

5.0

408

Roc la Tour – La Rumsteck , Spéciale Enduro loop from Thilay

03:38h

33.7km

1,060m

Easy

4.4

344

View of the Eau d'Heure Dam – Plate-Taille Dam loop from Froidchapelle

01:22h

21.5km

160m

Hard

4.4

234

View over the Étang de Virelles – Blaimont Viaduct loop from Chimay

05:27h

62.4km

1,090m

Hard

4.5

163

Lake Viewpoint – Singletrack Forest Trail loop from Philippeville

05:44h

72.8km

720m

Hard

4.0

227

Omeris Stream – Steep Forest Path loop from Namur

05:36h

61.7km

1,290m

Hard

5.0

244

Montaigle Castle – Les Sept Meuses Viewpoint loop from Anseremme

07:51h

90.5km

1,720m

Hard

5.0

185

The Hermeton Mill loop from Namur

02:33h

27.3km

600m

Moderate

4.5

View of the Meuse Valley – Les Sept Meuses Viewpoint loop from Sosoye

03:16h

38.9km

740m

Fondry des Chiens Gorge – Dourbes Tunnel loop from Olloy-sur-Viroin

Fondry des Chiens Gorge

Enduro Descent to the Tunnel (Olloy Side)

Dourbes Tunnel

Quarry Prospèr

View of Olloy from La Roche du PAS

Vierves-sur-Viroin

Nearby routes

Sign up or log in to keep exploring this route

We value your privacy ⛰️

We value your privacy ⛰️