The 10 best treks in the world. These 10 classic treks are for serious walkers.
All of them require a sturdy pair of lungs, fit legs and a good amount of preparation. However, if you choose to go on any of these trails then you will be rewarded with experiences that last a lifetime. In no particular order: 1. GR20, France. Places To Visit, Trip Planner, Travel & Vacation Ideas. Better Flight and Hotel Search. The Real Costa Rica. Everything you want or need to know about Costa Rica.