
Ibón de Cregüeña
A demanding ascent from Plan de Senarta to the deepest ibón in the Pyrenees, tucked beneath the walls of the Maladeta massif.
- Difficulty
- Hard
- Distance
- 12.5 km
- Elevation gain
- 1100 m
- One-way time
- 3 h 30 min - 4 h
- Total time
- 6 h - 7 h
- Minimum altitude
- 1350 m
- Maximum altitude
- 2650 m
- Trail type
- Out and back
- Best season
- From late June to October, once the snow has cleared from the cirque.
- Suitable for children
- No: desnivel continuado y terreno de bloques inestables
- Suitable for dogs
- Desaconsejada: canchal de bloques y ausencia de agua
- Terrain
- Track
⚠ Check official sources before doing this activity.
Interactive map
Base cartography: Spanish National Geographic Institute (MTN, IGN Base and PNOA orthophoto) and OpenStreetMap. Este mapa es informativo y no sustituye cartografía oficial, señalización, experiencia de montaña ni dispositivos GPS. Comprueba meteorología, avisos y estado de la ruta antes de salir.
The map shows the trailhead and parking for this route alongside the mountain lakes, waterfalls, viewpoints, mountain huts and villages catalogued nearby, with verified coordinates. We do not draw route tracks: follow official signage and IGN maps.
How to get there, parking and public transport
How to get there
From Benasque, take the A-139 north for about 10 km to the open area at Plan de Senarta, next to the Paso Nuevo reservoir.
Where to park
Car park at Plan de Senarta. It fills up very early in summer; once regulated access is in force, check the Benasque valley shuttle bus service.
Public transport
Shuttle bus service to Hospital de Benasque and La Besurta during peak season, when road access is regulated. Check official timetables from Benasque Town Council.
History
The Cregüeña cirque was one of the areas studied by 19th-century pioneers of Pyrenean mountaineering who explored the Maladeta massif from the Ésera valley.
Geology
Cubeta glaciar sobreexcavada en el granito del batolito de la Maladeta, cerrada por un umbral rocoso y rodeada de morrenas y canchales de bloques desprendidos de las paredes del circo.
Landscape
Circo de alta montaña casi mineral: granito claro, neveros persistentes y una lámina de agua profunda que refleja las agujas de la Maladeta.
Viewpoints and lookouts
- Ledge at 2,200 m above the Ésera valley
- Rocky threshold of the ibón
Photography
- Reflections of the massif on the ibón's surface early in the morning
- Aerial view of the Ésera valley halfway up the climb
- Backlit view of the Maladeta needles at sunset
Wildlife
- Chamois
- Alpine marmot
- Bearded vulture
- Wallcreeper
- Ptarmigan
Flora
- Mountain pine
- Rusty-leaved alpenrose
- Gentian
- Rock saxifrages
Curiosities
- With a measured depth of over 100 metres, it is considered the deepest ibón in the Pyrenees.
- The cirque is of glacial origin and preserves very well-defined moraines.
Tips
- Set off at dawn to avoid the heat and afternoon storms.
- Carry all your water from the start: there are no reliable springs on the way up.
- Swimming is not advisable: the water is only a few degrees all year round.
Recommended gear
- Mountain boots with good grip
- Trekking poles
- At least 2 litres of water
- Sun protection and sunglasses
- Windproof jacket and a warm layer
Trail conditions
Pista al inicio, sendero de montaña y un tramo final de bloques graníticos donde la traza se pierde entre hitos. Comprueba el estado real de los neveros antes de subir.
Sin fuentes fiables en el itinerario: sube toda el agua desde el inicio.
Spring
Snow patches and frozen scree; winter gear required.
Summer
Best season. Intense heat on the initial climb.
Autumn
Excellent light and fewer people; short days.
Winter
Winter high-mountain itinerary, for experienced mountaineers only.
Hazards
- Steady, steep ascent with almost no shade
- Unstable boulder terrain on the final stretch
- Persistent snow patches well into summer
- Afternoon storms in summer months
Weather
We do not publish our own forecasts. The mountain forecast for the area (Aragonese Pyrenees / Posets-Maladeta massif) is issued by AEMET, and snow conditions and avalanche risk should be checked in the official avalanche bulletin. Afternoon storms are common from June to September and conditions can change within hours.
Posets-Maladeta Natural Park rules
- Much of the valley lies within the Posets-Maladeta Natural Park: wild camping is forbidden (only authorised bivouac above 2,000 m between dusk and dawn, under current regulations).
- No fires, no collecting flora, fauna or minerals, and no leaving marked trails in sensitive areas.
- Dogs must be kept on a leash. In grazing areas and areas with protected wildlife their presence may be restricted.
- Drones require express authorisation from the Natural Park's managing body.
- Vehicle access to the Hospital de Benasque and La Besurta is regulated in summer: check the official shuttle service.
- Take all your rubbish with you, including organic waste and toilet paper. Mountain emergencies: 112.
Gallery








Photographs of the Ibón de Cregüeña area in the Benasque Valley, optimised in WebP for mobile and desktop.
Frequently asked questions
Is it suitable for children?
It is not recommended for young children due to the elevation gain and the boulder terrain on the final stretch.
Is there drinking water along the route?
There are no guaranteed springs. It is advisable to carry at least two litres per person.
Nearby
Mountain lakes
- Ibón de Cregüeña0.0 km
- Ibón de Coronas4.5 km
- Ibones de Paderna5.0 km
Recreation areas
Peaks
- Pico Maladeta1.7 km
- Pico Aneto3.1 km
Mountain huts
- Refugio de La Renclusa4.3 km
Trails
Waterfalls
- Cascada del Ardonés6.6 km
- Forau de Aigualluts6.9 km
- Cascada de Remuñe7.6 km
Restaurants, hotels and services
We do not publish business names without a verifiable source. Check the valley's official directory in food, accommodation and mountain huts.
Automatic planner
Half day
Short morning or afternoon outing, with time to eat in the valley.
- Early breakfast in Benasque and buy water and food.
- Drive or shuttle to the start of the chosen route.
- 2 to 3 hour walk with stops for photos.
- Return to the valley and visit the old town of Benasque or Anciles.
Full day
Long mountain day making the most of the daylight from early on.
- Set off before sunrise to avoid the heat and afternoon storms.
- Main route with a light meal on the way.
- Descend early: storms often build up by mid-afternoon in summer.
- Dinner and rest in the valley.
Families
Short routes, with water nearby and no exposed sections.
- Choose a route under 3 hours with gentle elevation gain.
- Baby carrier instead of a pushchair: the trails are stony.
- Picnic stop by a river or a meadow.
- Rainy-day alternative: valley villages and Romanesque heritage.
Experts
High mountain terrain with significant elevation gain, technical ground and specific gear.
- Check AEMET's mountain forecast and the avalanche bulletin if there is snow.
- Overnight in a mountain hut to shorten the summit day.
- High mountain gear and experience on glacial terrain or ridges.
- Leave word of your route and expected return time.
Plans generated automatically from the distance, elevation gain and difficulty of the catalogued trails. They do not include timetables, prices or opening hours: check official sources before doing this activity.
Related trails
Ibones de Batisielles y Escarpinosa
ModerateA classic route through the Estós valley among mountain pine and fir forests to a group of clear-water ibones beneath the Posets massif.
Ibón de Gorgutes
ModerateA mid-mountain route from Hospital de Benasque to a border ibón with views of the Puerto de la Glera pass.
Subida al refugio de La Renclusa
EasyA short but steady climb from La Besurta to the historic hut in the Maladeta massif, the classic base camp for the Aneto.