My daughter and I hired Alexandra to explore the Mutianyu section of the Great Wall as well as visit the pandas at the Beijing zoo. I couldn't find any commercial tour that would do this. Tours by Locals allows you to customise your own tour and then choose your own tour guide. Alex arrived nice and early to take us on our adventure. We were encouraged to ask any questions and she never left our side, even riding down the luge with us! Thankyou so much Alex for such a wonderful experience.