I agree with Trueblu.

You should value the opinion of those who are taking care of your son. If you are interested in exposing him to "Chinese" culture, instead of rock-climbing or taking pictures of the "European" section, why don't you start by asking his aunt and uncle what activities kids of his age do?

Instead of paying an adult guide to speak English to him, why not just have him play with neighbors's kids of his age (even if it starts with just video games)?