When did you go? we were there Nov 2015 and started the hike mid way between Ollaytamtambo and AC. I know I couldn't handle the full four day hike but wanted to experience some of it, was really pleased I did that.
The structures at MP is really incredible, built at that altitude. I particularly remember our guide telling us about the irrigation system which I think still works today. Thanks for the great memories
I was there 1 year later than you. I remember some of your Peru posts. Yes, the 4-day hike looks tough, and I don't like the hassles of booking in advance and arriving with all the crowds... Can you do that part of the hike on your own? I heard now it's mandatory to enter with a tour guide.