Peru Trip Cost: Coast, Andes and Machu Picchu for 4

Coast first, then the Andes: Lima, Huacachina, Cusco and the Salkantay trek into Machu Picchu, with Puno and Lake Titicaca on the way back. Here is that itinerary costed out in full, from the internal flights and night buses to the trek, the tours and the beers after, with every shared expense itemised in Ninja Tab so you can see who pays for what and what everyone owes at the end.