Lake Ansabère

This demanding out-and-back hike to Lake Ansabère climbs into one of the most dramatic corners of the western Pyrenees, on the French side of the Cirque de Lescun near the Spanish border. Expect roughly 10 km / 6.2 miles if starting from the upper access area, though many mapped versions begin lower and come out longer; with the lake itself sitting at about 1,859 m / 6,099 ft, the total ascent is commonly in the region of 700 m / 2,300 ft depending on exactly where you park. The usual starting point is the Pont de Lamary / Pont Lamareich area near Lescun, a recognized access point for the Vallon d’Ansabère. Sources describing the route place the approach from Lescun toward the Ansabère valley between the bridges of Masousa and Lamareich, with parking commonly referenced at Parking du Pont de Lamary / Lamareich, near pastoral buildings and the track into the valley. (mongr.fr)

The setting is a huge part of what makes this hike memorable. Lake Ansabère is a small mountain lake in the commune of Lescun, tucked beneath the famous Aiguilles d’Ansabère, with wider views toward the Table des Trois Rois / Mesa de los Tres Reyes and the limestone architecture of the Cirque de Lescun. Tourism and route sources consistently describe this area as one of the standout landscapes of the Béarn Pyrenees and a major center of classic Pyrenean mountaineering culture. (lacsdespyrenees.com)

Getting to the start

By car, the normal approach is to drive up the Aspe Valley, turn off toward Lescun, then continue on the local road signed for Ansabère. From there, hikers usually continue toward the Pont de Lamary / Lamareich or, if road conditions or restrictions make that unwise, leave the car lower down at Parking de Masousa and walk the extra section. Several route sources note that the track beyond the bridge can be rough, and one recent hiking source specifically advises driving very slowly from Pont Lamareich onward or parking earlier at Masousa to avoid vehicle damage. (imag-in-pyrenees.com)

By public transport, the most practical rail access is via Bedous, which is served by TER line 55 from Pau via Oloron-Sainte-Marie. From the valley floor, regional bus service reaches Pont de Lescun, and the Pyrénées Béarnaises tourist office also notes a transport-on-demand service in the Vallée d’Aspe for villages not directly served by the Bedous–Canfranc bus line. Public transport will usually still leave you with a substantial road approach or the need to arrange a local transfer, so this is a hike where checking current connections in advance is essential. (transports.nouvelle-aquitaine.fr)

What the route feels like

From the Lamary/Lamareich side, the route begins on a broad pastoral approach into the Vallon d’Ansabère. Early on, the walking is relatively straightforward, following track and then path through open mountain country. This lower section can feel deceptively gentle, but it is really just the prelude to the steeper work higher up. The valley narrows and the scenery becomes more rugged as the cliffs and needles ahead begin to dominate the skyline. (mongr.fr)

A useful way to think about the climb is in three parts:
- an easier valley approach,
- a steeper rise to the Cabanes d’Ansabère around 1,575 m / 5,167 ft,
- and a rougher final ascent to the lake at about 1,859 m / 6,099 ft. (mongr.fr)

The Cabanes d’Ansabère are one of the key landmarks on the route. These pastoral huts sit beneath the rock towers and mark the transition from grassy mountain terrain to a more mineral, high-mountain feel. From here, the path to the lake is typically narrower and steeper, weaving among blocks and rough ground. This upper section is where the “Difficult” rating makes the most sense: even if the mileage is moderate, the gradient, footing,