A series of ledges linked by 25-metre abseils, very rugged rock, dry ravine A small, unassuming wood in the Biescas area, a wood for foraging

A series of ledges linked by 25-metre abseils, very rugged rock, dry ravine A small, unassuming wood in the Biescas area, a wood for foraging

From the N330, just after the first turn-off for Sabiñánigo, at the roundabout heading towards Latas, once you reach Latas, drive through the village and, on the way out, head up towards the water tanks in the Las Margas housing estate; that’s where you’ll leave the car.

From the reservoir, head up towards the ‘Raya de Latas’ area; halfway up, on the left, you can make out a path – follow the markers, at some points where the path is unclear, head halfway up the slope towards the first water-filled areas of the ravine heading north; where the pine forest begins, look for the entrance to the ravine to the left of the stream bed – the first headwater, which is not visible as it lies beneath an overhang in the ravine bed itself

A series of ledges linked by 25-metre abseils, very rugged rock, dry ravine

Once you reach the Tramafoz ravine, follow the left-hand bank along an irrigation channel until you come to a path marked as an IMBA route; continue on to the housing estate and climb back up to the reservoirs