Waterfalls around Génos offer diverse natural experiences within the Louron Valley. Génos is a village situated near Lake Génos-Loudenvielle, serving as a base for exploring the surrounding Pyrenean landscape. The region features a combination of glacial lakes, river trails, and forested areas. These natural features provide opportunities for outdoor activities focused on waterfalls.
Last updated: June 25, 2026
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From here you also have a beautiful view of the Lac d‘Oô
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Easy course to do with small children
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Special place although too much car traffic
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Path runs along the river with many places to rest. It passes through the forest and the trees protect from the sun and the heat
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Very beautiful and picturesque hiking, the lake is definitely worth a visit. The entire route is about 10 kilometers and the elevation gain is only 400 meters. We climb up a winding rocky path surrounded by forest, and then a beautiful view of the valley and lake opens up. We also tried to go around the lake in a circle on the right side, we managed to reach the waterfall without problems, and then we would have had to ford the river, which we did not do.
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Nice waterfall - cools the head in high temperatures
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Two of the most impressive waterfalls easily accessible from Génos are the Cascade d'Oô and the Cascade d'Enfer. The Lac d'Oô waterfall plunges a dramatic 275 meters into the lake, offering a spectacular sight. The Cascade d'Enfer in the Lys Valley is also highly regarded for its power and beauty, standing at 55 to 70 meters high.
Yes, the Cascade d'Enfer in the Lys Valley is particularly suitable for families, with a short and easy walk of 5-10 minutes from the car park to its base. The Voie d'Aure Waterfall and River Trail is also noted as an easy course for small children, offering a path along the river through the forest.
The best time to visit is generally early summer. This is when the snowmelt ensures a robust water flow, making the waterfalls most powerful and impressive. The weather is also typically pleasant for hiking during this period.
The hike to Lac d'Oô is considered relatively easy to intermediate, covering about 6.6 km round trip with an elevation gain of around 440 meters, typically taking 2.5 to 3.5 hours. It's a classic Pyrenean trek, leading to a stunning glacial lake and its iconic 275-meter waterfall. Visitors often enjoy a picnic by the lake or refreshments at the refuge.
For the Lac d'Oô waterfall, there's a specific viewpoint next to the bivouac that offers the most axial and impressive perspective. The hike itself provides various scenic spots, including a View of Lake and Waterfall in the Pyrenees, where a beautiful view of the valley and lake opens up after climbing a winding rocky path.
The region around Génos offers a variety of outdoor activities. You can explore mountain hikes, including routes like the 'View of the plain – View of the Lac d'Oô waterfall loop'. There are also traffic-free bike rides and MTB trails around Lake Génos-Loudenvielle, providing options for all types of adventurers.
While specific regulations can vary, many outdoor trails in the Pyrenees are dog-friendly, especially if kept on a leash. For popular spots like Lac d'Oô, it's generally acceptable to bring dogs, but always ensure they are under control and that you clean up after them.
Near Lac d'Oô, there is a refuge where visitors can find refreshments. The village of Génos itself, and nearby Loudenvielle, serve as excellent bases, offering cafes, pubs, and various accommodation options. These villages are a short drive from the main waterfall access points.
Visitors consistently praise the stunning natural beauty and the rewarding hike. The combination of the deep blue lake, emerald cliffs, and the powerful 275-meter waterfall creates a fairytale-like setting. Many highlight the 'shattering sound of falling water' and the opportunity to continue to other lakes like Espingo for more experienced hikers.
For Lac d'Oô, parking is typically available at the Granges d'Astau, which serves as the starting point for the hike. For Cascade d'Enfer, there's a car park that allows for a very short walk to the base of the waterfall. It's always advisable to arrive early during peak season to secure a spot.
While Génos is a great base, direct public transport to the specific waterfall trailheads like Granges d'Astau (for Lac d'Oô) or the Lys Valley (for Cascade d'Enfer) can be limited. It's often more convenient to travel by car. Check local bus schedules for connections to larger towns like Bagnères-de-Luchon, from which further transport might be available.


Happy to travel a little further afield? Then browse these guides for the best waterfalls around Génos: