Trekking in the Andes will give your legs a workout, and this phrasebook will work your conversational skills at the same time
Word up on the Native American language of South America: you don't want to be tongue-tied on a mountain and have to charade 'I have a cramp', do you?
Guide to pronunciation and phrase-building
Understand when someone tells you the time by the sun
Practicalities - how to catch a bus or find a doctor