Yes - there are quite a few. A good place to start might be on the
HK Outdoors site which has lots of good info and some links to hiking clubs in the "Links Directory" area.
The Hong Kong Hikers Kiosk is another place with lots of useful links (and some amusing Chinglish
).
If you prefer to have something organised specifically to your requirements then there are companies that will do this, including
Hansen's Hikes.