The Salkantay is a roughly 41-mile hike that starts in the sleepy hamlet of Soraypampa and ends at Aguas Calientes, the town below Machu Picchu.
If you’re relatively fit and can cope with covering 20 kilometres (12.5 miles) in a day, you shouldn’t have any issues.
Get plenty of sleep, stay hydrated and be sure to get some Diamox to help your body adjust.
This is because going directly from sea level to an altitude of up to 4,620 metres (15,157 ft) can be extremely dangerous.
On day zero you’ll have time for a relaxed morning and lunch in Cusco, before you’re picked up at your hotel by the Alpaca Expeditions team around 3pm.