Highlight (Segment) • Lake
Lac Bersau
Hiking
5.0
(74)
Lac Bersau is a stunning high-altitude lake nestled in the French Pyrénées, specifically within the Pyrénées-Atlantiques department in the Nouvelle-Aquitaine region. Situated at an elevation of 2083 meters (6,834 feet) above sea level, it is a key part of the larger group of lakes known as the Lacs d'Ayous, and notably the highest among them. This natural lake, with its glacial origin, boasts remarkably clear, intense blue waters and is cradled at the foot of Pic Castérau, surrounded by other impressive peaks like Pic de Larry.
Hikers consistently praise Lac Bersau for its serene beauty and tranquil atmosphere. Many describe it as one of the most beautiful mountain lakes in the region, offering a delightful experience to walk around. Its slightly secluded position off the main trail provides a wilder and more peaceful escape compared to other nearby lakes, making it an ideal spot for quiet contemplation and scenic picnics amidst the alpine landscape.
To reach Lac Bersau, most visitors begin their journey from the Bious-Artigues area, a common starting point for hikes in the Ossau Valley. The trails leading to the lake vary in difficulty, with some routes requiring good fitness and sure-footedness due to the alpine terrain, which features meadows and scattered erratic blocks. Preparing for changeable mountain weather with appropriate footwear and clothing is always advisable for this high-altitude destination.
The main activity around Lac Bersau is hiking, with the lake forming a popular segment of the "loop of the Ayous lakes." Anglers can also enjoy fishing for species like fario trout and brook trout, though regulations apply as the lake lies within the core zone of the Pyrénées National Park. The area's natural beauty, particularly in the morning light, makes it a captivating destination for photographers and those seeking an immersive mountain experience.
Visitors often highlight the breathtaking panoramic views from the trails around Lac Bersau, which can include a discreet glimpse of the iconic Pic du Midi d'Ossau. The clear, oligotrophic waters, which allow light to penetrate deep, support unique submerged vegetation, adding to the lake's pristine character. The wild charm is further enhanced by isolated hooked pines dotting the shores, creating a picturesque setting.
Whether you're seeking a challenging trek or a peaceful walk, the diverse trails around Lac Bersau offer something for every outdoor enthusiast. Exploring the various routes available on komoot allows you to plan your visit, discover detailed `Lac Bersau trails routes`, and find the perfect path to experience this stunning Pyrenean gem, whether you're interested in `Lac Bersau lake hiking difficulty` or simply enjoying the natural features.
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April 11, 2021
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Hiking
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Nearby routes
Best routes near Lac Bersau
4.8
(263)
2,522
hikers
15.8km
05:29
770m
770m
This difficult 9.8-mile hike in the Pyrenees offers stunning views of Pic du Midi d'Ossau and passes several beautiful glacial lakes.
5.0
(9)
52
hikers
18.9km
07:50
1,180m
1,180m
This difficult 11.8-mile (18.9 km) hike from Astún offers stunning Pyrenean lakes and constant views of Pic du Midi d'Ossau.
4.8
(11)
270
hikers
22.5km
09:40
1,410m
1,410m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
Details
Informations
Distance 710 m
Uphill 10 m
Downhill 10 m
Weather
Powered by Foreca
Friday 19 June
26°C
14°C
43 %
Additional weather tips
Max wind speed: 20.0 km/h
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Frequently Asked Questions
What is the typical hiking difficulty to reach Lac Bersau?
The trails leading to Lac Bersau are generally considered moderate to hard, requiring good fitness and sure-footedness. The terrain is alpine, featuring meadows and scattered erratic blocks. While some routes are part of the popular "loop of the Ayous lakes," hikers should be prepared for elevation gains and potentially uneven paths.
Are there any specific permits or regulations for visiting Lac Bersau?
Lac Bersau is located within the core zone of the Pyrénées National Park. While general access for hiking does not typically require a permit, specific regulations apply to activities like fishing. Anglers must adhere to specific quotas and bait restrictions. Always check the latest regulations from the National Park authority before your visit, especially if planning activities beyond hiking.
Where is the best place to park when visiting Lac Bersau?
The most common starting point for hikes to Lac Bersau is the Bious-Artigues area. There is a parking lot available there, but it can fill up quickly, especially during peak season (summer) and on weekends. Arriving early in the morning is highly recommended to secure a spot.
Is Lac Bersau suitable for a winter hike?
While stunning, Lac Bersau is a high-altitude lake at 2083 meters (6,834 feet), making winter access challenging. Trails can be covered in deep snow and ice, requiring specialized equipment like snowshoes or crampons, and experience with winter mountain conditions. It is generally recommended for experienced winter hikers, and checking weather and avalanche forecasts is crucial.
Can I bring my dog on the trails around Lac Bersau?
As Lac Bersau is located within the core zone of the Pyrénées National Park, dogs are generally not allowed, even on a leash, to protect the local wildlife and environment. It's always best to verify the specific regulations of the National Park before planning your visit with a pet.
Are there any cafes, pubs, or accommodation options near Lac Bersau?
Lac Bersau itself is in a remote, natural setting without direct amenities. However, the Refuge d'Ayous is located nearby and offers basic accommodation and food services during its operational season. For more extensive options like cafes, pubs, and hotels, you would need to descend to the Ossau Valley, with towns like Gabas or Laruns offering various services.
What kind of wildlife can be seen around Lac Bersau?
The area around Lac Bersau is rich in Pyrenean wildlife. Hikers might spot various bird species, including raptors, and potentially encounter mammals such as marmots, chamois, or even ibex. The clear waters of the lake are home to fish like fario trout, brook trout, and Arctic char.
How long does it typically take to hike around Lac Bersau?
While the lake itself is relatively small, a full circular walk around Lac Bersau is often part of a larger loop, such as the "loop of the Ayous lakes." The time required depends heavily on the chosen route, starting point, and individual pace. A typical hike encompassing Lac Bersau as part of the Ayous loop can take anywhere from 4 to 7 hours, depending on the specific trail and stops.
Is wild swimming permitted in Lac Bersau?
While the clear, blue waters of Lac Bersau might be tempting, wild swimming is generally not permitted within the core zone of the Pyrénées National Park to preserve the fragile ecosystem. The water is also very cold due to its high altitude.
What are the best viewpoints for seeing the Pic du Midi d'Ossau from Lac Bersau?
While Lac Bersau offers a serene setting, the iconic Pic du Midi d'Ossau is often seen as a discreet glimpse from certain points along the trails, particularly as you approach or depart from the lake as part of the larger Ayous lakes loop. For more prominent views, consider trails that ascend slightly higher or offer broader panoramas of the Ossau Valley.
What is the maximum depth of Lac Bersau?
Lac Bersau is a surprisingly deep lake for its size. It reaches a maximum depth of 30 meters (98 feet). Its clear, oligotrophic waters allow light to penetrate up to 15 meters deep, supporting unique submerged vegetation.