Thanks for the ideas, Richard – and welcome to Hong Kong Outdoors.
Happily, I’ve never quite aimed for nature but ended up in Tuen Mun industrial area; tho went to some non-pretty places trying to see the crocodile.
Till someone produces a site along lines you suggest (inc how to reach “Springs national park gate”??), maybe you can try digging around this site for some info, and perhaps buy my book, Hong Kong Pathfinder, for info on hiking and walking in Hong Kong :laugh:
And if you come across other info on travelling in HK that people could fine useful, maybe you could post it in the forums.