Access: From Argelès-Gazost, head towards the Col d'Aubisque. At Arrens, head into the Arrens valley, go around Lac de Tech and continue along the road to the Bédout pine forest car park.
(S/E) From the car park, take the path in front of the Maison du Parc and cross the Gave d'Arrens. After a few hairpin bends in the forest and a crossing, you will reach Lac de Suyen. Continue along the path.
(1) At the crossroads (1,558 m), turn right, pass at the foot of the waterfall to reach the Doumblas hut.
(2) At the next crossroads, turn right, pass by the "Toue de Doumblas" (shepherd's shelter under a rock). The path winds through increasingly sparse vegetation and emerges in the Larribet valley. At around 1900m, the path climbs in hairpin bends to reach the Larribet refuge.
(3) Continue along the path above the refuge towards a gap (Brèche de la Garenère). Follow the cairns. The path quickly overlooks the lower lake on the right. Continue to the upper Lac de Batcrabère.
(4) Return by the same route to the parking lot at the sapin forest (S/E).