The trip takes a full day from early morning till late evening. It is tiring but you get to see colorful valleys and mountains. The few stops are synchronized with offers of local handicrafts. On the way back down the same tracks you must see again what you had seen in the morning, under another light angle, but still the same views. You are not supposed to leave your assigned train coach, where you will have to attend the performances of local musicians, participate in games, and listen to marketing recommendations, courtesy of the train's trained staff. My recommendation is, take the same tour by car (you can easily hire one), there is a road running sideways to the tracks, so you can stop anywhere you want, and if you want music you can go to any Peña near the railway station, it will be much better.
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