Well, awareness to people, especially to young people. HK gov site - Students awarded for designing creative logos on "Live Hygiene Live Health"
Since my family has always resided in Tai Po, I went to the official page and found some proud pics and one not so proud pic. But that river is kept immaculate, albeit a bit pongy sometimes, but it's clear. Wonder if my BF remembers walking over the footbridge? HK is getting cleaner and cleaner.