9個環保行動 9 actions to become a Green4 Trailwalker：
1) 自備水杯/容器盛載熱飲及湯 Bring your own cup/container for hot drinks and soup
2) 自備可循環再用餐具 Bring your own cutlery
3) 將飲清的鋁罐及膠樽投進大會的回收箱 Take your empty bottles/cans to our recycling bins
4) 將山徑垃圾帶回大會檢查站棄置 Take litter on the trail back to checkpoints
5) 成為「綠色支援隊」- 避免使用即棄塑膠餐具 Be a green support team – do not use single-use plastic
6) 協助大會將一號檢查站的膠樽帶到二號檢查站的回收設施 Bring bottles from CP1 (Sai Wan) to CP2 (Pak Tam Au) for recycling
7) 不做「大嘥鬼」 - 預算合適份量的食物，並將剩食帶回家 Do not waste food – plan what you will eat in advance and take surplus food home
8) 使用公共交通工具到達及離開會場，減少碳排放 Take public transport instead of driving to the venue to reduce your carbon footprint
9) 多菜少肉，做個素食毅行者 Eat more vegetables than meat during the OTW