4.5
(492)
4,636
hikers
117
hikes
Hiking around Arlos offers access to the mountainous terrain of the French Pyrenees, with elevations ranging from 509 meters to 2165 meters. The region is characterized by clear lakes, dense forests, and majestic peaks, providing varied landscapes for outdoor activities. The Garonne river also drains the commune, contributing to the natural environment. This setting supports diverse flora and wildlife, including flowering meadows and various mammals.
Last updated: May 4, 2026
4.7
(41)
535
hikers
6.20km
02:14
340m
340m
Hike through the Enchanted Forest of Carlac from Bausén, a moderate 3.9-mile circular trail with ancient beech trees and valley views.
21
hikers
8.60km
03:35
620m
620m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

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4.5
(2)
14
hikers
14.5km
04:19
410m
410m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
4.0
(1)
11
hikers
10.8km
04:17
820m
820m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.5
(2)
14
hikers
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
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The Fos footbridge spans the Garonne, which at this level is still a small bucolic watercourse. What makes the beauty of the place is not really due to the village of Fos itself but more to its protected natural environment. The village is surrounded by Natura 2000 sites and natural areas of ecological, faunal and floristic interest.
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The Col de Caude, accessible from Boutx or Bezins, offers lovely views and provides access to the Pic du Gar to the west and to the Pic de l'Escalette and then to the Pic de Gagire to the east.
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Hòs (official Fos) is a French municipality, located in the Haute-Garonne department and in the Occitanie region.
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Views of the Canejan valley from the Carlac forest
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Carlac beech forest where you can enjoy the nature of the Aran Valley
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A recent footbridge which allows you to cross the Garonne in peace.
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A rolling path overlooking the valley with class. A beautiful stone work dating from a time when Man designed junctions like masterpieces. Be careful at the start, the path overlooks cliffs but you can ride without difficulty. A small slab of rock that you pass by bike or not and then have a great time!
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There are over 100 hiking routes around Arlos, offering a wide range of options for different skill levels. You'll find everything from easy strolls to more challenging mountain ascents in the French Pyrenees.
Yes, Arlos offers several easy routes. For a pleasant walk through nature, consider the Carlac Beech Forest Trail, which is a moderate 3.9-mile (6.2 km) path through a notable beech forest. While not explicitly pram-accessible, many easy trails are suitable for families with children.
The region around Arlos is characterized by its dramatic mountainous terrain, ranging from 509 meters to 2165 meters in altitude. You can expect to encounter crystal-clear lakes, dense forests, and majestic peaks. The Garonne river also flows through the commune, adding to the natural beauty and providing riverside scenery on some routes, such as the Fos on the banks of the Garonne – Gravier Footbridge loop from Fos.
Yes, for experienced hikers seeking a challenge, Arlos and the surrounding Haute-Garonne Pyrenees offer routes with significant elevation gain. There are 29 difficult routes in the area. While specific challenging routes are not detailed here, you can find options that ascend towards mountain passes or peaks like Gar Peak for more strenuous adventures.
The region boasts several notable features. You can explore mountain passes like the Menté Pass or the Portillón Pass. For panoramic views, consider routes leading to Gar Peak. The Saunères Hut also offers a typical Pyrenean mountain stop with views of the Luchonnais chain.
Yes, there are several circular routes. A popular option is the Caube Pass loop from Boutx, a moderate 5.1-mile (8.2 km) path that offers scenic views as it ascends. Another circular route is the View of Bausen – Fageda de Liat loop from Bausen, which is 10.8 km long.
The hiking routes in Arlos are highly regarded by the komoot community, holding an average rating of 4.5 stars from over 490 reviews. Hikers often praise the varied terrain, from moderate forest paths to more challenging ascents, and the immersive experience in the unspoiled nature of the Pyrenees.
While Arlos is nestled in a mountainous region, public transport options directly to every trailhead might be limited. It's advisable to check local bus schedules for the Haute-Garonne department or consider driving to access more remote starting points. For general information on getting around the region, you might find resources on the Haute-Garonne Tourism website.
Parking availability varies by trailhead. For popular routes or those starting from villages like Boutx or Fos, you can usually find designated parking areas. It's recommended to check the specific route details on komoot for information on parking at the starting point of your chosen hike.
The Pyrenean climate means that spring, summer, and early autumn are generally the most favorable seasons for hiking in Arlos. During these months, the weather is typically milder, and the flowering meadows are vibrant. Winter can offer opportunities for snowshoeing or more specialized winter hiking, but requires appropriate gear and experience due to snow and ice conditions.
Yes, the renowned GR10 long-distance hiking route, which traverses the Pyrenees from the Atlantic to the Mediterranean, passes through the Haute-Garonne department, including areas near Luchon and Artigue. This offers impressive scenery and numerous trails for those looking for multi-day adventures or sections of a longer trek.
While Arlos itself is drained by the Garonne river, the wider Haute-Garonne department features natural sites with beautiful lakes. Notable options for hiking include Espingo Lake, Génos-Loudenvielle Lake, and the accessible Oô Lake, which are popular destinations for hikers seeking water features.


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