We booked a 4 days private tour to Cusco, Sacred Valley and Machu Picchu, and Yarik was our guide. What a nice and possitive person. He has a lot of Knowledge about all the aspects of Peru, and the Cusco area. We used to stop at every interesting point on our way, and Yarik gave us a wide description of what we saw, and connected it to the local history and culture. He is really a polymath!Most of all, we would like to thank Yarik for his great help to our son who had an altitude sickness.Yarik is a great person!No doubt that he is the best choice for a tour guide in that area. Highly recommended.Sadeh Family.