Before I get too in the weeds, I think it's worth noting that after at least a decade of traveling to developed countries, Peru was bound to be a very different trip. It was our first time traveling to South America. It was the first time I was traveling with my in-laws. Also first time traveling to high altitude locations. Lots of firsts! The first thing we noticed was the transportation - we travelled on a South American airline (LATAM) for the first time, and found it to be a good experience. They automatically checked us into the flight 48 hours prior - I can only assume this is because they don't overbook their flights. On international flights, they provided blankets, pillows, and a light meal to all passengers (which is no longer part of the base fare for North American airlines). Of course, we did have that unfortunate experience on the flight back (also with LATAM) where one of us got food poisoning - so they don't get a perfect score. The great experience also doe...