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France
Occitania
Foix

Alzen

Attractions and Places To See around Alzen - Top 20

Best attractions and places to see around Alzen, a commune in the Ariège department of southwestern France, are characterized by their natural landscapes and historical significance. Located within the Regional Natural Park of the Ariège Pyrenees, the area offers a blend of outdoor activities and cultural exploration. The region is part of the "pays de Foix," known for its medieval heritage and scenic river valleys. Visitors can explore greenways, historical towns, and natural features.

Best attractions and places to see…

Last updated: May 5, 2026

The tunnels of Véloroute 81

Highlight (Segment) • Cycleway

This magnificent 44-kilometre greenway has been developed between Saint-Girons and Foix, replacing an old railway line. It has many tunnels which have the particularity of being equipped with motion detectors.

You will therefore be enlightened as you progress underground.

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Vernajoul Viaduct Greenway

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Very nice viaduct, but from here there is no view of Foix and the castle.
The interface is not good either.
More information: af3v.org/les-voies-vertes/voies/279-search_tag and fr.wikipedia.org/wiki/Ligne_de_Foix_%C3%A0_Saint-Girons?wprov=sfla1

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Foix

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A very beautiful little town with a certain charm. If you're in the area, you should definitely stop by.

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Foix–Saint-Girons Greenway

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Very scenic, but overall a poor surface.
Too bad, with a better surface the Bahntrassenradweg would have a lot of potential.
More information: af3v.org/les-voies-vertes/voies/279-search_tag and fr.wikipedia.org/wiki/Ligne_de_Foix_%C3%A0_Saint-Girons?wprov=sfla1

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Col de la Crouzette (1245 m)

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Be careful, since yesterday, June 19th, the descent to Rivèrenert has been freshly graveled and dangerous. I had a rear puncture due to small, sharp gravel sticking to the tire when braking. So, don't go crazy on this descent, friends.

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Popular around Alzen

Cycling around Alzen

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Gravel biking around Alzen

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Bettina
June 23, 2025, Foix

A very beautiful little town with a certain charm. If you're in the area, you should definitely stop by.

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Be careful, since yesterday, June 19th, the descent to Rivèrenert has been freshly graveled and dangerous. I had a rear puncture due to small, sharp gravel sticking to the tire when braking. So, don't go crazy on this descent, friends.

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Because around 12pm and >31°C, the climb from Biert is mostly in the shade, and this pass generally ends a series of small linked passes (like Portech, Catchaudégué or La Core, Saraillé, etc.). And the challenge of the last 3 km is worth experiencing to strengthen your mental strength. Get to your pedals

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This is the longest tunnel on the greenway: it's super fun to go through. Be careful: it's a bit chilly!

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A very beautiful viaduct, it's a bit impressive and truly unusual on a greenway. The train used to go there, now the bikes go there!

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Hello everyone, I'm from Ariège, I decided this year to do the greenway with my dog Emy in both directions. It's a very beautiful walk, however there are some black points: lack of stone benches to deter potential thieves, and on the other hand the large Rimont tunnel which is 803 m long there is no more light. The motion detector does not work. Luckily that day I had my flashlight with me. There is horse excrement everywhere, perhaps one day we will have to ask the riders to pick up their droppings. It's a very beautiful walk.

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Huge monument, where the railway used to run and where cyclists and pedestrians now travel. Worth seeing!!!

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The Col de la Crouzette, rising to 1,244 m but sometimes indicated at 1,241 or 1,245 m, is a road pass in the Pyrenees in the department of Ariège, to the south the commune of Biert, on the limit with Rivèrenert , on the route des cimes between Saint-Girons and Foix. Wikipedia

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Frequently Asked Questions

Where is Alzen located and what is its general character?

Alzen is a commune situated in the Ariège department, within the Occitanie region of southwestern France. It is nestled within the Regional Natural Park of the Ariège Pyrenees and is part of the historical "pays de Foix," known for its medieval heritage and scenic river valleys.

What are the most popular attractions around Alzen?

Visitors particularly enjoy The tunnels of Véloroute 81, a 44-kilometer greenway built on an old railway line with motion-detector lit tunnels. The medieval city of Foix, overlooked by its magnificent castle, is also a must-see. Additionally, the Vernajoul Viaduct Greenway offers a unique viewpoint and is integrated into a popular cycling and pedestrian route.

Are there family-friendly activities or walks around Alzen?

Yes, several attractions are suitable for families. The Vernajoul Viaduct Greenway and the Foix–Saint-Girons Greenway are both marked as family-friendly cycle ways, perfect for leisurely rides or walks. The town of Foix itself, with its castle, also offers an engaging experience for all ages.

What historical sites can I visit near Alzen?

The most prominent historical site is the town of Foix, which is a medieval city dominated by its impressive castle. Further afield, you can explore the Chateau de Foix (approximately 11 km away) and the historic Saint Lizier Cathedral (27 km), which is part of pilgrimage routes.

What natural features can I explore in the Alzen area?

Alzen is located within the Regional Natural Park of the Ariège Pyrenees, offering a wealth of natural beauty. Notable features in the wider region include the Vallée de Vicdessos, Cirque d'Anglade, Fontaine Intermittente de Fontestorbes, and Cirque du Sisca. The area is characterized by scenic river valleys and mountainous landscapes.

Are there good hiking trails around Alzen?

Yes, the area around Alzen offers various hiking opportunities. You can find trails like "Le cap du Carmil – hike starting from Col des Marrous" or local loops such as "L'Écomusée d'Alzen – Le Hameau de Seigneuric loop from Alzen." For more options, explore the Hiking around Alzen guide, which includes routes of varying difficulties.

What cycling routes are available near Alzen?

Alzen is known for its cycling routes, particularly greenways built on old railway lines. Popular options include The tunnels of Véloroute 81 and the Foix–Saint-Girons Greenway. For a comprehensive list of routes, check the Cycling around Alzen guide, featuring routes like the "Vernajoul Viaduct Greenway – Old metal bridge loop."

What do visitors enjoy most about the attractions around Alzen?

Visitors appreciate the blend of natural landscapes and historical significance. The greenways, like The tunnels of Véloroute 81, are praised for their unique features and accessibility. The charm of medieval towns like Foix and the scenic views from places like the Vernajoul Viaduct Greenway are also highly rated.

Are there any viewpoints or scenic spots in the area?

Yes, the Vernajoul Viaduct Greenway offers a viewpoint integrated into the greenway, providing scenic vistas. The town of Foix, with its castle perched on a rocky outcrop, also provides magnificent views of the surrounding area and the Ariège Pyrenees.

What are some lesser-known alternatives to popular attractions?

While the main attractions are popular for a reason, exploring the smaller towns and villages within the Regional Natural Park of the Ariège Pyrenees can offer a quieter experience. Consider visiting local markets in nearby towns like La Bastide-de-Serou or Saint-Girons for a taste of local life away from the main tourist hubs.

Can I find running trails near Alzen?

Absolutely! There are several running trails available, ranging from moderate to difficult. Examples include "Running loop from Cadarcet" and "Lac de Mondély loop from Montels." For a full selection of routes, consult the Running Trails around Alzen guide.

Are there any mountain passes for cycling or hiking near Alzen?

Yes, the Col de la Crouzette (1245 m) is a notable mountain pass in the area, offering challenging climbs and scenic views. It's a less known but attractive option for those seeking a quieter experience on narrow roads.

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