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Hiking trails & Routes
Belgium
Wallonia
Namur
Andenne

9. Trou Perdu Trail

Moderate

4.6

(7)

18

hikers

9. Trou Perdu Trail

03:00

11.0km

160m

Hiking

Hike the 9. Trou Perdu Trail, a moderate 6.9-mile loop through Thon-Samson, one of Wallonia's Most Beautiful Villages, with castles and view

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

183 m

Chemin 8

Highlight (Segment) • Trail

Chemin 8, a descending gravel road that becomes hollow. Sometimes flanked by an old stone wall.

Translated by Google •

Tip by

2

1.18 km

Thon Castle Farm

Highlight • Castle

The castle-farm of Thon is a castle-farm complex which dates back to the 14th century, when it was the seat of a feudal lordship. There you will find a medieval …

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Tip by

3

1.67 km

Sarrazins Viewpoint

Highlight • Viewpoint

The imposing silhouettes of the Saint-Remi church and the castle-farm, both dating from the 18th century, seem to protect the village. From the heights of rue des Sarrazins, one can …

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Tip by

4

2.48 km

Andenne viewpoint

Highlight • Viewpoint

Viewpoint marked on the topomap/streetmap.
With a nice 360° overview of the Condroz.

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Tip by

5

7.35 km

Élevée en moellons de calcaire mêlés de grès, l’église Saint-Firmin est une église d’inspiration romane qui a subi de nombreuses modifications. L’édifice a connu une transformation majeure au 19ème siècle, …

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B

11.0 km

End point

Parking

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Way Types & Surfaces

Way Types

3.95 km

3.50 km

2.18 km

1.35 km

< 100 m

Surfaces

5.16 km

1.99 km

1.40 km

1.34 km

1.14 km

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Elevation

Elevation

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

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Weather

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Monday 6 July

27°C

17°C

0 %

Additional weather tips

Max wind speed: 20.0 km/h

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Frequently Asked Questions

Where can I park and access the Trou Perdu Trail?

The Trou Perdu Trail is located in Thon-Samson, Belgium. You can typically find parking within the village itself, which serves as a convenient starting point for exploring this beautiful area. The trail often begins near the historic center, allowing immediate immersion into the village's charm.

How difficult is the Trou Perdu Trail?

This trail is generally considered relatively easy, suitable for casual hikers and those looking for a leisurely stroll. While komoot classifies the 11 km route as 'moderate', the core 'Trou Perdu Trail' in Thon-Samson is often described as a walk of about 7.93 kilometers with a modest elevation change, making it accessible for most fitness levels.

Is the Trou Perdu Trail dog-friendly?

Yes, the Trou Perdu Trail is generally dog-friendly. Many sections pass through open fields and quiet paths, which are enjoyable for dogs. However, it's always recommended to keep your dog on a leash, especially when passing through agricultural areas, near livestock, or in populated village sections like Thon-Samson.

What is the best time of year to hike this trail?

The best time to hike the Trou Perdu Trail is during spring, summer, or early autumn. These seasons offer pleasant weather for walking through fields and villages, with vibrant greenery in spring and summer, and beautiful colors in autumn. Winter can be charming but may involve muddy paths.

Do I need a permit or pay an entrance fee for this hike?

No, you do not need a permit or have to pay an entrance fee to hike the Trou Perdu Trail. It is freely accessible to the public, allowing you to enjoy the natural and cultural heritage of Thon-Samson without any special requirements.

What kind of terrain can I expect on the Trou Perdu Trail?

The trail offers a diverse and picturesque landscape. You'll walk through the charming village of Thon-Samson with its traditional blue stone houses, then venture into open countryside, across fields, and through sections of woodland like the Bois du Pelé Tienne. Paths are generally well-maintained, but can be muddy after rain.

What are the main points of interest along the route?

The route is rich in cultural and natural highlights. You'll pass through Thon-Samson, one of Wallonia's Most Beautiful Villages, and see the Thon Castle Farm. Further along, you can admire the Notre-Dame du Bon Secours chapel, historical landmarks in Bonneville like the Bonneville Castle and Saint-Firmin Church, and enjoy views from the Sarrazins Viewpoint and Andenne viewpoint.

Does the trail intersect other well-known paths?

Yes, the route intersects with several other paths. Notably, it covers significant sections of the Echappée du Grand Andenne (68%) and the 9. Parcours du Trou Perdu (62%). You'll also find smaller segments overlapping with the GRP 575 À travers le Condroz and the GRT-BVW 03 Thon-Samson - Crupet.

Is the Trou Perdu Trail a circular route?

Yes, the Trou Perdu Trail, as described, is a circular route. It typically starts and ends in the village of Thon-Samson, guiding you through the surrounding countryside and villages before returning to your starting point. This makes for a convenient and complete hiking experience.

Are there any facilities like cafes or restrooms near the trail?

As the trail passes through the village of Thon-Samson and nearby Bonneville, you can expect to find some local facilities. Thon-Samson, being a recognized beautiful village, may offer small cafes or guesthouses. It's advisable to check local opening hours, especially outside of peak tourist season.

What should I wear and bring for this hike?

For this moderate hike, wear comfortable walking shoes or light hiking boots suitable for varied terrain, including potentially muddy paths. Dress in layers to adapt to changing weather. Bring water, snacks, a small first-aid kit, and a camera to capture the scenic views and historic sites. A map or GPS device is also recommended.

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