I had Percy as a guide in Cusco and the Sacred Valley and was very impressed with the extent of his knowledge of the region and Incan history. Our group of 4 was lucky enough to have him also guide us on the Inca Trail and he made that such a difference in that experience. I ended up being really sick with altitude sickness and he was very encouraging to me that I could make it along with being genuinely concerned for my well being. I felt very cared for and am grateful he was there to cheer me, tell me it was time for an oxygen break and we had some great conversations.