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Belgium
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Ardennes

Top 9 Mountain Passes in the Ardennes

Best mountain passes in the Ardennes traverse a region characterized by dense forests, rolling hills, and river valleys across Belgium, Luxembourg, and France. These routes offer elevated viewpoints and scenic drives through varied terrain. The area features elevated plateaus and river valleys, providing diverse landscapes for exploration. It is known for its natural beauty and historical sites.

Best mountain passes in the Ardennes

  • The most popular mountain pass is Col du Rosier Climb from Spa, a climb that is…

Last updated: May 10, 2026

Col du Rosier Climb from Spa

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My favorite climb in the Ardennes; nice gradient and long enough to train real climbing

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Col du Rideux

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The Col du Rideux: a gem in Luxembourg's Aisne Valley and a favorite among climbing enthusiasts. The 2.6 km climb (avg. 6.2%, 160m elevation gain) winds through a dense forest …

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Dragon's Back

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Up early… The hotel wakes up.
The first rays of the sun shine through the window. While consuming a hearty breakfast, stubborn fog banks are cleared up.
We are ready. …

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Col du Saty (365 m)

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This pass, which drops to 315 meters above sea level, is accessible after a short but intense effort, with an average incline of 13%. The road leading to it crosses the forest, making it a very pleasant pass to climb.

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Col de Boussire

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The climb on open road is not too dangerous with good lights, people in the area know how to drive... until the sun goes down.
Always some wind.
...here it …

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Caressa
December 13, 2025, Col du Rideux

The Col du Rideux: a gem in Luxembourg's Aisne Valley and a favorite among climbing enthusiasts. The 2.6 km climb (avg. 6.2%, 160m elevation gain) winds through a dense forest and is actually divided into two sections. After the hairpin bend, it seems to be over, but then comes a challenging final half kilometer at 8%. The road surface isn't in the best condition, but the climb has charm. Fun fact: rumor has it that this was the first climb in Belgium to be designated a "Col"!

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This pass, which drops to 315 meters above sea level, is accessible after a short but intense effort, with an average incline of 13%. The road leading to it crosses the forest, making it a very pleasant pass to climb.

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Very short neck but with an average percentage of 13% 😅

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Dries
February 20, 2025, Col du Rideux

small pass with parking, several walks start here.

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At the sign of the highest point there is a warning against ticks and Lime disease, Good thing. We were also lucky because a day later we could not have walked this walk because of the Hunters.

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Dries
November 14, 2024, Col du Rideux

small pass with parking to start your walk.

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Dries
November 14, 2024, Col du Rideux

At this small pass you can park and start several walks.

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Dries
November 14, 2024, Drakenrug

Nice single track that ends with a short and steep descent.

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Frequently Asked Questions

What types of mountain passes can I expect to find in the Ardennes?

The Ardennes region is known for its scenic drives, elevated viewpoints, and routes through dense forests and river valleys, rather than traditional high-alpine passes. You'll find challenging climbs like Col du Rosier Climb from Spa, winding forest ascents such as Col du Rideux, and open road climbs offering expansive views like Col de Boussire. Many passes offer trails for hiking and cycling, often leading to stunning vistas.

Are there challenging climbs for cyclists in the Ardennes?

Yes, the Ardennes offers several challenging climbs. For instance, Col du Rosier Climb from Spa is considered one of Belgium's longest and most challenging inclines, known for its significant gradient and length, making it ideal for training. Another notable climb is Col du Rideux, which features a winding ascent through a dense forest with a challenging final section.

What kind of natural features can I see around the mountain passes in the Ardennes?

The Ardennes is rich in natural beauty. You can expect to see dense forests, rolling hills, and picturesque river valleys. Areas like the High Fens nature reserve, accessible via routes like the Hautes Fagnes Loop, feature unique heathland, peat bogs, and Belgium's highest point, Signal de Botrange. Many passes, such as Col du Saty (365 m), offer scenic views through forests and fields.

Are there good viewpoints along the mountain passes in the Ardennes?

Absolutely. The Ardennes is known for its elevated plateaus and river valleys that provide numerous spectacular viewpoints. The Ardennes Panorama Loop, for example, offers breathtaking vistas overlooking wooded landscapes and rocky outcrops, especially near Remouchamps and Stavelot. The Semois Valley features incredible meanders visible from viewpoints like the Rock at Seven O’Clock and the Rock of the 7 Villages.

What historical or cultural sites can I explore near the Ardennes mountain passes?

The Ardennes region is dotted with historical and cultural landmarks. Along the Ardennes Panorama Loop, you can explore historic sites like the Abbey of Stavelot and the castle ruins of Reinhardstein. The Ourthe Valley features the ruined castle of La Roche-en-Ardenne. Additionally, towns like Dinant, on the Route Charlemagne, offer a citadel accessible by cable car, providing both history and panoramic views.

Are there hiking trails near the mountain passes in the Ardennes?

Yes, many mountain passes in the Ardennes serve as starting points for hiking trails. For example, Col du Rideux has a parking area at the top, allowing access to hikes across the 'Dragon's Ridge'. The region offers a variety of hiking experiences, from easy strolls to more challenging routes. You can find more detailed hiking options in guides like Waterfall hikes in the Ardennes and Easy hikes in the Ardennes.

What outdoor activities are available near these mountain passes, besides hiking?

Beyond hiking, the Ardennes offers a wide range of outdoor activities. The Ourthe Valley is popular for mountain biking and canoeing, with destinations like Durbuy providing adventure parks. The Semois Valley near Poupehan is also a great starting point for mountain biking and canoeing. For cycling enthusiasts, there are numerous routes, including gravel biking opportunities detailed in guides like Gravel biking in the Ardennes.

Is there parking available at the mountain passes?

Yes, some mountain passes offer dedicated parking. For instance, Col du Rideux has a large, partially paved parking lot at its summit, making it convenient for visitors to start their walks or explore the area.

What is the best time of year to visit the Ardennes mountain passes?

The Ardennes is beautiful year-round, but each season offers a different experience. Spring and autumn provide vibrant colors and pleasant temperatures for outdoor activities like cycling and hiking. Summer is ideal for longer days and warmer weather, while winter can transform the landscape into a snowy wonderland, suitable for specific winter activities, though some routes might be more challenging due to conditions.

What do visitors enjoy most about the mountain passes in the Ardennes?

Visitors frequently appreciate the challenging yet rewarding climbs, the stunning natural scenery, and the peaceful atmosphere. Many enjoy the feeling of real climbing that routes like Col du Rosier Climb from Spa offer. The winding roads through dense forests, the open road views, and the opportunities for hiking and exploring charming villages are also highly valued by the komoot community.

Are there any easy mountain passes or scenic drives for a relaxed experience?

While some passes offer challenging climbs, the Ardennes also provides more leisurely scenic drives. The Semois Valley Loop, for example, is a relaxed 70-kilometer route following the winding Semois River, offering picturesque scenery and natural viewpoints. The Route Charlemagne (N97 & N40 Dinant - Mons) also provides a pleasant drive through the hilly landscape with wide-open views, showcasing the region's beauty without extreme difficulty.

Most popular routes in the Ardennes

Family-friendly hikes in the Ardennes

Most popular attractions in the Ardennes

Natural Monuments

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See even more epic mountain passes by checking out these guides in the Ardennes:

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