Translation of octave in Spanish

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We stepped down slowly and made the walk back to the parking spot. Sam was with us all the time and after Lili visited a souvenir shop he finally brought us back to the hotel where we dressed up.
A band was playing Peruvian music while we were waiting for our luggage. The altitude is immediately felt: Dark blue skies and thin air, which won't let you climb stairs without having to take a few breaks.