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Clerve River

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River
—°10
Clerve River (Luxembourg)

Weather…

The Clerve (Woltz) is a characteristic river of the Luxembourgish Oesling and a major tributary of the Wiltz. It originates in the north near the Belgian border and meanders through a deeply incised valley dominated by Paleozoic slate rock. The river section near the town of Clervaux (Clerf) is particularly famous, where the river forms a prominent loop around the rocky outcrop housing Clervaux Castle and the abbey. Ecologically, the Clerve provides valuable habitats for trout and aquatic insect larvae, with water quality continuously improved through modern treatment systems. The valley's history is closely linked to the tanning industry and hydraulic power use, evidenced by old mill sites. Today, the Clerve is a popular destination for anglers and hikers who appreciate the untouched nature and cultural sights along its course.

Best time to visit & climate

The most pleasant time to visit is Jun–Aug.

JanFebMarAprMayJunJulAugSepOctNovDec
Avg °C01481216181714951
Rain mm756463497575748159677284

📋 Practical info

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Getting there
The river is highly accessible from the town of Clervaux and other northern settlements it flows through. Trails frequently trace the water's edge and the surrounding steep valley.
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Best season
Autumn transforms the dense forests of the valley into a spectacular visual display. Summer provides deep, cooling shade along the riverbanks, good for strenuous walks.
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Terrain & paths
The landscape is characterized by a stark contrast between relatively flat riverside paths and demanding, steep forested ascents. Navigating the valley sides requires good stamina.
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What to bring
Proper hiking boots are essential if you plan to tackle the steep, forested valley walls. Carrying a detailed map is wise due to the varied and sometimes challenging terrain.
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Parking
Clervaux gives multiple public parking lots that serve as excellent base camps for exploring the river. Some smaller, informal spots exist along the roads following the valley.
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Safety
Exercise caution on the steep forest trails, particularly after rainfall when leaves and roots become slippery. Keep a safe distance from the river during periods of high water flow.
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Time needed
Exploring the town, river, and surrounding steep trails easily fills three to five hours. Many visitors choose to make a full weekend out of the diverse Clervaux region.

Geography

Coordinates
50.05420, 6.03110

Facts

  • The total length of the Clerve is approximately 48 kilometers.
  • The river originates near Huldingen at an altitude of about 530 meters.
  • In its upper course, the river is often referred to as 'Woltz'.
  • The Clerve flows into the Wiltz River at Kautenbach.
  • Historically, the river powered numerous leather tanneries in Clervaux.
  • The Clerve valley is part of the geologically significant Ardennes formation.

Explore nearby

Notable places around

Route planner — Car & Motorhome

Where do you start? We build the route here, with stops and country notes along the way.

Vehicle
Only stops with (optional):

© OpenStreetMap contributors · OpenRouteService

Sights in the town Clerve River (10)

Museum der Modelle der Schlösser und Burgen Luxemburgs🏛 museum

Museum in Clervaux, displays models of Luxembourgish castles.

🕒 Aug 11-Apr 30 Sa-Su 10:00-18:00; May 01-Aug 10 Tu-Su 10:00-1

Château de Clervaux🏰 castle

Castle in Luxembourg, medieval fortress in Clervaux.

Musée de la Bataille des Ardennes🏛 museum

Museum in Clervaux, focuses on the Battle of the Bulge.

Villa Berlaymont🏰 castle

Castle in Clervaux, historic building.

Saints-Côme-et-Damien

Church building in Clervaux, Luxembourg, dedicated to Saints Cosmas and Damian.

Rochuskapell

Church building in Luxembourg, dedicated to Saint Roch.

Abbey of St. Maurice and St. Maurus of Clervaux

Abbey in Clervaux, Benedictine monastery.

Loretto Kapell

Chapel in Luxembourg, dedicated to Our Lady of Loreto.

Hall polyvalent

Multi-purpose hall in Clervaux, venue for events and culture.

Sights nearby

Frequently asked questions

Through which region does the Clerf flow?
It flows through northern Luxembourg, the Ösling region.
Is Clervaux located on this river?
Yes, the town of Clervaux is situated in a prominent loop of the river.
Can you cycle along the Clerf?
There are cycling paths that partly run parallel to the river.
Are there campsites?
Yes, near Clervaux and Wilwerwiltz there are campsites by the water.
Is the river deep?
It is mostly shallow but varies depending on rainfall.
Clerve River: where is it located?
Clerve River is located in Luxembourg.
Clerve River: what is there to see?
Highlights include Museum der Modelle der Schlösser und Burgen Luxemburgs, Château de Clervaux, The Family of Man.
Clerve River: when is the best time to visit?
The most pleasant time to visit is Jun, Aug.
Clerve River: why is it worth visiting?
The Clerve (Woltz) is a characteristic river of the Luxembourgish Oesling and a major tributary of the Wiltz.
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