With Gustavo Reyes, Miguel Heras, Mohamad Ahansal, Depa and a great crew from the GR trail running team we headed to Penitentes – Argentina for the High Altitude Training camp put on by Andes Trail. Penitentes is a tiny village at the bottom of the Aconagua surrounding mountains. They are red, orange, brown and ‘unnamable’ colours. They are big and barren. They are adventourous and luring. And then there is Aconagua peaking out about at almost 7000m. The air is thin and the sun is hot. What a place to get some wonderful miles in the legs and lungs.