3.9
(20)
108
hikers
10
hikes
Hiking around Barrage-Réservoir De L'Astarac offers diverse terrain around an artificial lake in the Gers department of France. The lake features a distinctive Y-shape, extending across the Arrats de devant and Arrats valleys, with wooded hillsides to the east. The wider Astarac region is characterized by rolling relief, alternating between hillsides and valleys. Hikers can experience panoramic views of the Pyrenees mountain range from the reservoir's long dike.
Last updated: July 2, 2026
3.6
(5)
15
hikers
6.43km
01:44
80m
80m
Moderate hike. Great for any fitness level. Mostly accessible paths. Sure-footedness required.
4.0
(1)
14
hikers
8.75km
02:19
90m
90m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.0
(1)
14
hikers
9.30km
02:28
100m
100m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
2.5
(2)
6
hikers
3.52km
01:00
80m
80m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
3
hikers
17.5km
04:50
300m
300m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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This artificial lake, whose dam was built in 1976, is a stopover for migratory birds. It is part of the Natura 200 network and a wide variety of migratory birds can be observed here, for example the booted eagle, the red kite, the gray heron and the egrets. A 3 km fitness trail is available.
2
0
A very beautiful course in a tunnel of woods, trees and greenery.
2
0
This artificial lake, whose dam was built in 1976, is a stopover for migratory birds. It is part of the Natura 200 network and a wide range of migratory birds can be observed here, for example the booted eagle, red kite, gray heron and egrets. A 3 km fitness trail is available.
2
1
A very nice trail through a tunnel of woods, trees and greenery.
2
0
This very pleasant little road through the woods gives access to a lake.
0
0
The area offers a diverse landscape characterized by the lake's unique Y-shape, wooded hillsides to the east, and rolling relief with alternating hills and valleys typical of the Gascon region. You'll find a mix of serene waterscapes, forested paths, and open countryside, providing varied scenery for your hikes.
Yes, Barrage-Réservoir De L'Astarac offers options for various skill levels. There is at least one easy route available, such as the Small road in the woods loop from Aussos, which is 3.5 km long. Additionally, a dedicated 3 km fitness trail (parcours de santé) provides a structured option for a brisk walk.
The region is enjoyable for hiking throughout much of the year. Spring and autumn offer pleasant temperatures and beautiful scenery. The wooded corridors along the banks provide shaded walks, which can be particularly welcome during warmer summer months. For birdwatching, the area is a significant migratory stopover and wintering ground, making these seasons ideal for spotting various species.
While the region is generally welcoming to outdoor activities, specific rules regarding dogs on trails can vary. It's always recommended to keep your dog on a leash, especially in natural areas like Barrage-Réservoir De L'Astarac, which is part of the Natura 2000 network and home to diverse wildlife. Please check local signage for any specific restrictions.
Yes, the diverse terrain and varying difficulty levels make Barrage-Réservoir De L'Astarac suitable for families. Easy walks and the 3 km fitness trail are great options for children. Routes like the Lac de l'Astarac — loop from Aussos, at 6.4 km, offer engaging scenery without being overly strenuous, making them enjoyable for families.
Barrage-Réservoir De L'Astarac is a significant area for nature enthusiasts, especially birdwatchers. It's part of the Natura 2000 network and a migratory stopover, with over 160 bird species observed, including booted eagles, red kites, grey herons, cattle egrets, and night herons. You might also spot amphibians like the calamite toad, raptors, and forest bats in the wooded hillsides.
Yes, many of the popular routes around Barrage-Réservoir De L'Astarac are circular, allowing you to start and end at the same point. Examples include the Lac de l'Astarac loop from Embats and the Astarac Lake – Lac de l'Astarac loop from Aussos, which offer varied scenery along the lake's edge and through wooded sections.
The area is highly rated by the komoot community, with an average score of 3.9 stars from around 19 reviews. Hikers often praise the serene waterscapes, the panoramic views of the Pyrenees from the reservoir's dike, and the diverse mix of forested paths and open countryside that make for engaging and scenic walks.
Absolutely. The lake's distinctive Y-shape provides varied shorelines and perspectives. Hikers can enjoy exceptional panoramic views of the nearby Pyrenees mountain range, especially when traversing the long dike of the reservoir. The wooded hillsides also offer pleasant, shaded walks and contribute to the area's natural beauty.
There are 10 hiking trails available around Barrage-Réservoir De L'Astarac, catering to different preferences and skill levels. These include easy, moderate, and some more challenging routes, ensuring there's something for everyone.
Yes, Barrage-Réservoir De L'Astarac is equipped with picnic areas, making it convenient for hikers to take a break and enjoy a meal amidst the natural surroundings. These facilities enhance the overall outdoor experience.
The longest route listed is the Lac de l'Astarac – Small road in the woods loop from Embats, which spans 17.5 km (10.9 miles). This moderate trail offers extensive views and a comprehensive experience of the area's diverse landscapes.


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