Canyons around Plan are characterized by a mountainous landscape, featuring deep gorges carved by rivers within the Pyrenean surroundings. The region includes traditional settlements with stone architecture adapted to the steep terrain. This area offers a variety of natural features, including river pools, ravines, and valleys surrounded by peaks reaching over 3,000 meters. Plan provides opportunities to explore diverse geological formations and natural waterways.
Last updated: May 7, 2026
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The Bellós River pools are small, crystal-clear pools formed between rocks, where the river calms and creates natural pools. A perfect spot to cool off and enjoy the wild beauty of the Pyrenean surroundings.
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The third (or first) ravine of the Tres Barrancos route, equipped with a comfortable wooden walkway. Like the other two, this ravine usually descends with little water, especially in the central summer months.
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Beautiful valley that is surrounded by peaks between 2,000 and 3,000 meters above sea level, among which Tuca Llardana (or Posets) stands out, which with 3,375 m. It is the second highest peak in the Pyrenees; In addition, it has abundant lakes, such as those of Millares, Barbarisa and Basa de la Mora (or Lake Plan).
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Beautiful valley that is surrounded by peaks between 2,000 and 3,000 meters high, among which the Tuca Llardana (or Posets) stands out, which with 3,375 m. it is the second highest peak in the Pyrenees; In addition, it has abundant lakes, such as those of Millares, Barbarisa and Basa de la Mora (or Plan lake).
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Near the road that goes from Puyarruego to Nerín we find the Pozas del río Bellos. These are located a few meters from the road, where sometimes you have to take it to the side and go down to the level of the river to find them. There are many of them and in different sections of the river with different accessibility.
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The town of Escuaín has a beautiful set of popular architecture hanging over the narrow gorge of the Yaga River, the houses are made of stone, sober, show the need for protection against inclement weather and are adapted to the limitations of the relief, the steep physical environment and the typology of the land on the edge of the Yaga river canyon. There is a signposted route that passes through several viewpoints and can be combined with the route of the viewpoints of the town of Revilla.
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The climb up the ravine is steep and you need a steady foot. It can be avoided by reaching the Lavasar Refuge by car along a forest track in good condition.
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The canyons around Plan are characterized by a mountainous landscape featuring deep gorges, river pools, and ravines. You can find crystal-clear river pools like the Bellos River Pools, and valleys surrounded by peaks reaching over 3,000 meters, such as the Chistau Valley, which also features abundant lakes.
Yes, Escuaín is a notable settlement featuring popular architecture hanging over the narrow gorge of the Yaga River. Its stone houses are adapted to the steep terrain, and a signposted route offers views of the river canyon.
The settlement of Escuaín offers a signposted route with several viewpoints overlooking the Yaga River canyon. Additionally, the Chistau Valley provides stunning vistas of peaks between 2,000 and 3,000 meters high, including the Tuca Llardana (Posets).
The Bellos River Pools offer natural spots to cool off and enjoy the Pyrenean surroundings, which can be a pleasant experience for families. The signposted route through Escuaín, with its architectural interest and viewpoints, is also generally accessible.
Difficulty levels vary. For instance, the Ibón de Plan Ravine is considered challenging due to its steep climb, though it can be accessed via a forest track to the Lavasar Refuge. Other areas, like Barranco dels Molinazos, are equipped with comfortable wooden walkways and are generally intermediate.
While specific seasonal data is not provided, some ravines like Barranco dels Molinazos usually have low water levels during the central summer months, which might be ideal for exploration. Generally, the Pyrenean region is best enjoyed from late spring to early autumn for outdoor activities.
Beyond exploring the canyons themselves, the region offers various outdoor activities. You can find numerous cycling routes, including challenging touring bicycle trails like the 'Valle de Benasque — riding around the Sierra de Portiello'. Mountain biking is also popular, with routes such as the 'Sierra de Chía Loop Trail'. For runners, there are trails like the 'Ibón de Plan Trail via GR 15'. You can find more details on these activities in the cycling, MTB, and running guides around Plan.
Yes, there are several hiking and running trails in the vicinity. For example, the 'Ibón de Plan Trail via GR 15' is a difficult running trail that takes you through the landscape. Other trails include the 'PR-HU 115 Trail to Ibón del Sen' and 'Ibones de Barbarisa Trail'. More information can be found in the running trails guide around Plan.
The Bellos River Pools are popular for their small, crystal-clear waters formed naturally between rocks. They offer perfect spots to cool off and enjoy the wild beauty of the Pyrenean surroundings, with multiple pools found in different sections of the river.
Yes, while the climb up the Ibón de Plan Ravine is steep, it can be avoided. You can reach the Lavasar Refuge by car via a well-maintained forest track, offering an alternative approach to this challenging gorge.
The Barranco dels Molinazos is notable for being equipped with a comfortable wooden walkway, making it more accessible. It's part of the 'Tres Barrancos' route and typically has low water levels, especially during the summer months.
Visitors appreciate the diverse natural formations, from traditional settlements like Escuaín with its unique architecture, to the refreshing Bellos River Pools. The challenging ascents of ravines like Ibón de Plan Ravine and the stunning high-mountain scenery of the Chistau Valley are also highly valued.


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