Unless you have at least 3 weeks or a month to spend in Peru, you probably won't get to see as much of the country as you'd like, at least on a first trip. Peru is large, and there are considerable geographic and transportation barriers that make zipping around the country complicated. Some regions require difficult travel by land, with no air access. A real danger is trying to do too much in too short a period. Even on relatively short trips of 2 weeks or less, you have to take into account those hefty distances and transportation routes, not to mention natural factors -- such as jet lag and acclimatization to high altitude -- that require most visitors to slow down.
