郊野公園護理員(兼職)的主要職責為 (a) 保養和記錄儲物室內的物品； (b)為教育活動和宣傳工作包裝及派遞物品； (c) 協助巡視地質景點和訪客設施，並於周末、周日和公眾假期查察承辦商的服務；以及 (d) 協助向訪客提供服務，並蒐集地質公園的活動數據，以作改進地質公園管理和發展用途。 [註：可能獲指派到本港任何地點工作；或須不定時工作，包括在夜間及周末；或須駕駛政府車輛和穿著制服。]

The Park Warden (Part-time) is mainly deployed on (a) maintaining and recording materials in store rooms; (b) packing and delivering materials for educational programmes and publicity work; (c) assisting inspections of geosites and visitor facilities and checking the service of contractors on weekends, Sunday and public holidays; and (d) assisting in delivering visitor services and obtaining data on geopark activities needed for better management and development of Geopark. [Note : May be required to work in any part of Hong Kong; work irregular hours, including evenings and weekends; drive departmental vehicles and wear uniform.]