We climbed the Cerro Toco (aka headache machine), which was described as an 'easy climb'. However, we were not yet adjusted to the height in San Pedro, and walking at a height over 5000m is not really a piece of pie. But we managed, and got to the top at 5604, from which we could see into Bolivia, onto the Laguna Blanca and vulcanos Licancabur and Juriques.