Hi Ian,
Yes, we spotted the face on the way back from the tree next to the army base. When we stopped to take a couple of photos of the tree, we could hear singing coming from within the base which added a surreal quality to the whole trip!
It looks like a great place to go biking and I saw a lot of people on road and downhill bikes, so I guess there must be some nice routes around there.
Is there any other similar walking around Chengdu? I’ve visited Emei Shan, Qingchen Shan in the hope I find something similar to the UK Lake District.. but I’m still trying to find what I’m looking for!