We will leave Sallent de Gállego to go towards the municipal swimming pools, from there on the right, we will take a path that will take us to the height of La Sarra to then continue with the GR-11 until we reach the height of the Caseta de Ibonciecho. Once there, go westwards, following the track where you will pass a pipe and from there take the path that will take you to the La Sarra reservoir. At the end of this path, turn left onto a track that will take you to the La Sarra bridge, cross the bridge and take the path that will take you to the dam. Finally, cross the dam and take the first path towards Sallent de Gállego.
Estimated time: 1 hour 10 minutes. Elevation gain: 792+
This trail running route is the route of the "Ibontieso Trail" of 2023, one of the two trail running competitions held as part of the "Trail Sallent de Gállego".