Know how many days you have, but not sure what your options are to trek in Peru? You've come to the right place! Browse through all our trekking itineraries according to trek length by clicking on the number of days (4D = 4 day treks). When planning your hike in Peru, don't forget: in addition to the number of trek days, you also need to plan for a minimum of 2-3 days to acclimatize before you start trekking.