This is a good group to know about if you're interested in the Lung Fu Shan / Mount Davis Area, including the Cheng Po Tsai path that runs along there.
As their name suggests they walk the hillsides, and are also interested in the history of the area. The founder is a Mr Chan. Most mornings at around 10am he's at the flat area next to Planting Site No. 1, having tea with his friends. You can also visit their website at;