4.5
(12)
1,051
runners
40
runs
Jogging around Sem offers a variety of routes through a landscape characterized by significant elevation changes and natural features. The region's running routes often include historical ruins, grottoes, and mountain peaks, providing challenging terrain for runners. Many trails lead through areas with waterfalls and high-altitude ponds, suggesting a diverse natural environment. The area around Sem is well-suited for those seeking demanding running experiences with notable ascents.
Last updated: May 7, 2026
5.0
(1)
134
runners
17.6km
02:35
800m
800m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(2)
26
runners
11.4km
01:35
420m
420m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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20
runners
27.7km
04:04
890m
890m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
18
runners
10.0km
01:07
100m
100m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
16
runners
14.8km
02:58
960m
960m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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By climbing to the peak of Risoul you can enjoy a magnificent view of the village of Vicdessos and its valley. Be attentive, the chamois like to hang around and observe hikers.
1
0
Very cold water, the path is difficult, wear good shoes
0
0
Komoot offers over 40 running routes around Sem. These trails cater to various fitness levels, though many feature significant elevation changes, making them ideal for those seeking a challenging run.
While many routes in Sem are classified as difficult due to mountainous terrain and elevation gain, there is at least one easy route available. For a less strenuous option, you can explore the Auzat loop from Val-de-Sos, which is 7.1 miles (11.4 km) long and leads through varied terrain.
The running trails in Sem vary significantly in length. For example, the Auzat loop from Val-de-Sos is 7.1 miles (11.4 km), while the Refuge de Bassiès – Burgruine und Grotten loop from Val-de-Sos extends to 15.6 miles (25.1 km). Many routes are designed for longer, more demanding runs.
Running routes in Sem often feature stunning natural and historical sights. You can expect to see mountain passes like Lers Pass and Saleix Pass, high-altitude ponds such as Izourt Pond, and even historical ruins and grottoes. The Burgruine und Grotten – Pic de Risoul loop from Val-de-Sos is a great example, offering castle ruins and grottoes.
Yes, many of the popular running routes in Sem are designed as loops, allowing you to start and finish at the same point. Examples include the Burgruine und Grotten – Pic de Risoul loop from Val-de-Sos and the Refuge de Bassiès – Burgruine und Grotten loop from Val-de-Sos.
While the guide does not specify dog-friendly routes, many natural trails in mountainous regions are generally suitable for well-behaved dogs on a leash. However, always check local regulations and be mindful of wildlife and other trail users. Given the challenging terrain, ensure your dog is also fit for such runs.
Some longer routes may pass by refuges or huts that offer refreshments. For instance, the Refuge de Bassiès – Burgruine und Grotten loop from Val-de-Sos explores mountainous terrain and passes a refuge, which could be a potential stop. It's always advisable to carry your own water and snacks, especially on longer or more remote trails.
The running routes in Sem are highly rated by the komoot community, with an average score of 4.5 stars from more than 10 reviews. Runners often praise the challenging mountainous paths, the historical ruins, and natural water features like waterfalls and ponds, which provide a diverse and engaging running experience.
Yes, the region around Sem is known for its natural water features. Some trails lead through areas with waterfalls and high-altitude ponds. The Cascade D'artigue – L'Artigue loop from Val-de-Sos is an excellent option if you're looking to incorporate a waterfall into your run.
The guide does not specify the best time of year. However, given the significant elevation changes and mountainous terrain, spring, summer, and early autumn are generally ideal for running in such regions, offering more stable weather and accessible trails. Always check local weather conditions before heading out.
The guide does not provide specific details on shade coverage. Mountainous regions can have varied tree cover. It's advisable to prepare for sun exposure, especially on higher elevations or open sections of trails, by wearing appropriate clothing and sunscreen.
While the most popular routes are well-known, exploring trails like the Étang de Peyregrand loop from Bouychet can offer a unique experience. This route, though challenging, takes you to a beautiful high-altitude pond, providing a rewarding and perhaps less crowded adventure.


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