We will be flying into Cusco early in the morning, and have heard that it's best to head straight to sacred valley to acclimate there prior to Machu Pichu as we don't have a few days to acclimate in Cusco. My question is, would we be taking a chance of not feeling well by stopping at some of the ruins on the way? We are spending 2 nights in Olly and are thinking we should just head there to relax and take in the town if we feel up to it. We have the next day to tour around the sacred valley. Also the Pisac market is not open on that day (Monday) we will be coming from Cusco. Is it easy enough to tour the main sites from Olly?