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Thilay walks
The Big Oak from Thilay
Visorando Member 
7.44 mi
+1,158 ft
-1,138 ft
4h 25
Moderate
Departure from Thilay (Ardennes)
A short, mainly woodland route around Thilay and Naux. You will discover the old Moulin de la Gire mill, the former hamlet of Narbruay, and the Maison du Père Labranche. This walk also includes two viewpoints over Nohan, on the ridge of the Château de Linchamps.
Champ Bernard at the start of Thilay
Visorando Member 
7.08 mi
+1,010 ft
-984 ft
4h 10
Moderate
Departure from Thilay (Ardennes)
After warming up on the Transsemoysienne, you will walk along the Gire stream and the Chaufour and Nantanru paths to reach the Champ Bernard clearing. You will return via Nohan, then along the left bank of the Semoy.
This hike offers two viewpoints over the Semoy valley.
Le Roc la Tour in the Château-Regnault Forest
Visorando Member 
7.78 mi
+1,391 ft
-1,371 ft
4h 45
Moderate
Departure from Thilay (Ardennes)
For those who enjoy forests and elevation changes, and at the heart of the walk, the Roc la Tour is characterised by its quartzite columns, likely remnants of the Château du Diable. Here, you can enjoy a magnificent view of the Ardennes forest.
Thilay’s historic wash house route
Visorando Member 
7.43 mi
+728 ft
-738 ft
4h 05
Moderate
Departure from Thilay (Ardennes)
A beautiful route in the Semoy Valley at Thilay and its hamlets, focusing on the heritage of old wash houses and fountains. These 19th- and early 20th-century buildings allowed residents to collect water and wash their clothes. Two types of wash house can be seen on this route: vaulted structures resting on the rock on the hillside, or those built from schist slabs in the village.
From one height to another around Thilay
Visorando Member 
8.57 mi
+1,398 ft
-1,385 ft
5h 10
Moderate
Departure from Thilay (Ardennes)
This hike offers a variety of routes, allowing you to visit Roc la Tour and perhaps even meet the Ladies of Semoy. Changes to the route between (9) and (11) made on 27/7/2025 due to the closure of the Naux footbridge.
Roc la Tour from Thilay
Visorando Member 6.26 mi
+1,158 ft
-1,135 ft
3h 55
Moderate
Departure from Thilay (Ardennes)
This hike will take you along forest paths to a spectacular geological site hidden in the heart of the Château-Regnault National Forest.
La Roche à Sept Heures
Visorando Member 
8.19 mi
+1,194 ft
-1,211 ft
4h 50
Moderate
Departure from Tournavaux (Ardennes)
With a fairly challenging first section through the forest and a more leisurely second section along the Meuse and Semoy rivers, this route has two main destinations:
- the Roc la Tour site, a vast quartzite massif,
- and La Roche à Sept Heures, located at the top of rocky spurs overlooking the Meuse.
The viewpoint at this site offers a very picturesque panorama of the meander, considered to be the most spectacular in France, on the convex side of which Monthermé was built.
East of Navaux
Visorando Member 
7.48 mi
+1,532 ft
-1,516 ft
4h 45
Difficult
Departure from Thilay (Ardennes)
A forest trail starting from a small village in the Semoy Valley. La Roche au Pihü, Les Dames de Semoy and the Robessart viewpoint offer magnificent views of the valley's relief.
The Liry ridge via the Fay-Phades quarries
Visorando Member 
5.38 mi
+958 ft
-955 ft
3h 20
Difficult
Departure from Tournavaux (Ardennes)
Between Tournavaux and Haulmé, this short but invigorating route follows the ridge between the Meuse and Semoy valleys. Several viewpoints are on the itinerary, as well as a section at the start of the walk through the former Fay-Phades quarry site.
Short circular in the Semoy valley
Visorando Member 
5.70 mi
+361 ft
-335 ft
2h 55
Easy
Departure from Tournavaux (Ardennes)
Set in lush green surroundings, this is an easy little route, ideal for getting back into exercise after a period of inactivity.
Champ Bernard and the Nantanru Valley
Visorando Member 
3.94 mi
+643 ft
-643 ft
2h 20
Moderate
Departure from Thilay (Ardennes)
Good physical condition is required for this short route, which has a significant elevation gain in its first section. The descent along the Ruisseau du Nantanru is very pretty and presents no difficulty. The return via the Transsemoisienne, the old "little train" route, allows for a leisurely return along the Semoy.
From Roc la Tour to Tchar Scaille
Visorando Member 
7.63 mi
+863 ft
-866 ft
4h 15
Moderate
Departure from Thilay (Ardennes)
Forest route starting from Roc la Tour to the Six Chênons clearing.
Alternating between marked paths and more secluded trails.
A route in the "Hauts"
Visorando Member 
8.14 mi
+584 ft
-584 ft
4h 15
Moderate
Departure from Thilay (Ardennes)
Three stunning spots and a viewpoint over the Semoy Valley are on the itinerary for this forest walk.
La Dauphinée, Linchamps Castle, La Roche Margot and La Croix d’Enfer
Visorando Member 
7.44 mi
+1,430 ft
-1,411 ft
4h 40
Moderate
Departure from Les Hautes-Rivières (Ardennes)
This hike along varied trails takes you to the sites of La Dauphinée and Linchamps Castle, as well as two remarkable viewpoints overlooking the industrious village of Les Hautes-Rivières.
The Baraques les Dolimarts circular route in Hautes-Rivières
Visorando Member 
6.87 mi
+1,122 ft
-1,099 ft
4h 10
Moderate
Departure from Les Hautes-Rivières (Ardennes)
Imagine the smuggling of tobacco, alcohol and chocolate sold in shacks on the edge of the Franco-Belgian border, marked by the Ruisseau du Bois Jean and the River Semois. Marvel at the wooden cabins of Les Dolimarts.
Col du Loup and Bois des Hazelles
Visorando Member 
7.41 mi
+604 ft
-610 ft
3h 55
Moderate
Departure from Bogny-sur-Meuse (Ardennes)
Hike with no significant elevation gain, suitable for inexperienced walkers. Route mainly on forest trails. Beautiful views of the Semoy and the entrance to Hautes Rivières, at the Robertsart site, at the paragliding launch site.
Moderator's note : it seems that private property shortly afterwards (12) makes it necessary to return via the D13, see reviews.
Around the Hautes Rivières and Nohan sur Semoy
Visorando Member 
10.74 mi
+1,778 ft
-1,768 ft
6h 30
Moderate
Departure from Les Hautes-Rivières (Ardennes)
This route, located at the beginning of the French Semoy Valley, will give you access to four viewpoints that will allow you to discover Les Hautes Rivières, Nohan and the Crête du Château de Linchamp from different angles. It will give you the opportunity to admire a landscape shaped by the river and its tributaries.
Around Linchamps
Visorando Member 
12.35 mi
+2,093 ft
-2,113 ft
7h 30
Difficult
Departure from Les Hautes-Rivières (Ardennes)
There is a lot of forest and surprising terrain around this long village on the right bank of the Saint-Jean stream.
On either side of the Ruisseau de l'Ours
Visorando Member 
7.12 mi
+1,234 ft
-1,217 ft
4h 20
Moderate
Departure from Les Hautes-Rivières (Ardennes)
Forest walk starting from Linchamps in the commune of Hautes Rivières. A mountainous start, a stop at La Neuville aux Haies, a forest path running along the edge above the Ravin de l'Ours, a marked descent to rejoin... the Ravin de l'Ours and a peaceful finish.
See suggested alternative in the section: Places to see
The use of a GPS is recommended; do not rely on the old dot-marking system, which remains in place in some areas
More walks in Thilay
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