We just returned yesterday from our 5 day hiking Salkantay trek. What a wonderful time! Our guide Carlos was amazing, energetic and very knowledgable about the ruins and different places we saw. The food was great as well. I´m a vegetarian and the cooks made sure I had food which I enjoyed. Our group was small and that made hiking easier. We lucked out on the last day and had great weather at Machu Picchu. Overall, I would definitely do this trek again. If you are looking for some adventure, great views, and are semi athletic, then I´d say this is the hike for you.