Best lakes in Posets-Maladeta are primarily glacial lakes, locally known as "ibones," located within the Aragonese Pyrenees. This natural park features over one hundred such lakes, formed during the ice age. These high-mountain landscapes offer diverse hiking opportunities and are crucial to the park's ecosystem, regulating rivers and providing habitats for flora and fauna. Most lakes are found at altitudes above 2,500 meters, with some accessible below 2,000 meters.
Last updated: May 3, 2026
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This modern refuge is located in an unrivalled location. In addition to offering accommodation, it has an open kitchen, food service, bar, toilets, hot showers and heating.
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Despite being relatively easy to access, this beautiful lake located at 2300 m altitude is not one of the most visited in the Pyrenees. However, it stands out for being located in a very clear glacial cirque, with an almost perfect overexcavation basin. All Aragonese lakes are protected as they are included in the Inventory of Singular Wetlands, so any activity that could modify the quality of their waters is prohibited. While bathing is not specifically mentioned, it is understood that bathing with chemicals on the skin such as sunscreen, deodorants, perfumes or creams is negatively affecting the quality of the water, so it cannot be done. You can read the protection decree and the list of wetlands included here: aragon.es/-/humedales-de-aragon
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This lake located at 2339 m altitude is undoubtedly one of the most visited in the Benasque valley, due to its proximity to Llanos del Hospital. All Aragonese lakes are protected as they are included in the Inventory of Singular Wetlands, so any activity that could modify the quality of their waters is prohibited. While bathing is not specifically mentioned, it is understood that bathing with chemicals on the skin such as sunscreen, deodorants, perfumes or creams is negatively affecting the quality of the water, so it cannot be done. You can read the protection decree and the list of wetlands included here: aragon.es/-/humedales-de-aragon
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Despite being relatively easy to access, this beautiful lake located at 2300 m altitude is not one of the most visited in the Pyrenees. However, it stands out for being located in a very clear glacial cirque, with an almost perfect overexcavation basin. All Aragonese lakes are protected as they are included in the Inventory of Singular Wetlands, so any activity that could modify the quality of their waters is prohibited. While bathing is not specifically mentioned, it is understood that bathing with chemicals on the skin such as sunscreen, deodorants, perfumes or creams is negatively affecting the quality of the water, so it cannot be done. You can read the protection decree and the list of wetlands included here: aragon.es/-/humedales-de-aragon
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By mountain bike it is not too difficult to get here. You could probably do it on a gravel bike too. The views are wonderful and worth the trip. Sometimes food is sold here and a bus comes here.
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The first ibón that you find on this route, although it is half camouflaged among the vegetation. Next to the path there is a stone hut that is a bit dirty but that can serve as a shelter in case of need.
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The refuge is located between lakes and streams through which they communicate with each other. The facilities are great, even offering food service and a bar! It is the ideal place to stop to take a breather for granted.
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Worth a vissit, but watch out for the broken street. Its a horror for the car to drive through
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Many trails lead to the stunning glacial lakes, known as ibones. A popular option is the hike to Ibonet de Batisielles, which is often surrounded by lush greenery. Another well-frequented route is to Ibón de Gorgutes, known for its beautiful surroundings and proximity to Llanos del Hospital. For a more challenging but rewarding experience, consider the hike to Ibón Blanco de Literola, which offers incredible routes along flowing rivers and views of 3,000-meter peaks.
Yes, some lakes are more accessible for families. The Ibones de Villamuerta are known for being beautiful and relatively easy to visit, especially the lower lake, with a hike to cross both taking approximately 1.5 to 2 hours. The area around Plan d'Estan in Benasque Valley also offers family-friendly sections. For easy hikes in the region, you can explore routes like the Paso Nuevo Reservoir loop or the Camino de Aigualluts loop, which are part of the Easy hikes in Posets-Maladeta guide.
The best time to visit is generally during the warmer months, from late spring to early autumn (June to September), when the trails are clear of snow and the weather is most favorable for hiking. Even in summer, you might still see snow or ice in higher-altitude lakes like Ibón Blanco de Literola, adding to their allure.
Swimming is generally discouraged in the glacial lakes (ibones) of Posets-Maladeta Natural Park to protect their pristine water quality and delicate ecosystems. All Aragonese lakes are protected, and activities that could modify their water quality, such as bathing with chemicals like sunscreen or perfumes, are prohibited.
The difficulty varies significantly. Some lakes, like the lower Ibones de Villamuerta, offer relatively easy access suitable for families. Others, such as the hike to Ibón Blanco de Literola, are more challenging and involve significant climbs. Many trails are considered intermediate, requiring a moderate level of fitness. Always check the specific route details before you go.
Yes, there are refuges available. The Cap de Llauset Refuge is a modern hut located between lakes and streams, offering accommodation and services. Near Ibonet de Batisielles, you'll find the Batisielles cabin, which can serve as a shelter.
While many lakes are popular, Ibón del Sen is a beautiful lake located in a very clear glacial cirque that, despite being relatively easy to access, is not as frequently visited as some others. The Barbarisa Ibones, accessible via a well-signposted trail from the Sahún pass, also offer a stunning experience against the backdrop of the Barbarisa cirque and are perhaps less crowded than the most famous spots.
Yes, the region offers various cycling opportunities. You can find several MTB trails, such as the Sierra de Chía Loop Trail or the Hospital de Benasque to Plan d'Estan circular route, detailed in the MTB Trails in Posets-Maladeta guide. For road cycling, routes like the Hospital de Benasque – Puente de Cubera loop are available, as highlighted in the Road Cycling Routes in Posets-Maladeta guide.
The lakes are set within the stunning high-mountain landscapes of the Aragonese Pyrenees. You'll encounter glacial cirques, pine forests, verdant meadows, and dramatic rock formations. Many trails also pass by flowing rivers and waterfalls, such as the Prats waterfall on the way to the Barbarisa Ibones. The area is rich in diverse flora and fauna, making it ideal for nature enthusiasts.
Even in summer, mountain weather can be unpredictable. It's advisable to wear layers, including moisture-wicking base layers, a fleece or insulated mid-layer, and a waterproof and windproof outer shell. Sturdy hiking boots are essential, along with sun protection (hat, sunglasses, sunscreen) and plenty of water. Higher altitudes can be significantly cooler, and snow patches can persist even in warmer months.
Access to many of the high-altitude lakes and trailheads in Posets-Maladeta Natural Park often requires private vehicle access or specific shuttle services during peak season, as public transport options directly to remote trailheads can be limited. It's best to research specific routes and their access points for the most up-to-date information on public transport availability.
Visitors are consistently captivated by the breathtaking scenery, the tranquility of the high-mountain environment, and the diverse hiking opportunities. The reflection of surrounding trees and mountain peaks in the calm waters of lakes like Ibón de Escarpinosa is often highlighted as a real gem. The sense of achievement after reaching a remote ibón and experiencing the majesty of the Pyrenees is also a common sentiment.


Still not found your perfect lake in Posets-Maladeta? Check out the guides of these regions to see even more beautiful places.