The Graduate School (GS) organised an ecotour to Yim Tin Tsai, Sai Kung, on 10 December 2024. The tour focused on local history, culture, and ecological systems while visiting various sites in the Hakka village.

The tour began at St. Joseph's Chapel, a UNESCO-recognised Roman-styled building with Hakka influences. The chapel, built in 1890, received the UNESCO Asia-Pacific Heritage Award of Merit for Cultural Heritage Conservation in 2005. Next was the Yim Tin Tsai Heritage Exhibition Centre, formerly Ching Po School. The centre displays domestic utensils, farming tools, and cultural relics from the Eastern Han dynasty, which date back some 2,000 years.

The tour shifted to the sea for the next two sites, the mangroves and the salt pan. The tour guide explained how the mangrove roots and seeds have adapted to seawater. The Yim Tin Tsai mangrove forest serves as a vital habitat for a diverse array of aquatic species. The unique ecosystem supports an intricate interplay of marine life and terrestrial vegetation. Villagers also adapted to salty water. Previously, salt production was Yim Tin Tsai's main industry. The villagers restored the salt pans in recent years and received a Distinction in the UNESCO Asia-Pacific Awards for Cultural Heritage Conservation.

This ecotour provided postgraduate students with opportunities to learn about Hakka village life in the past and present. The GS organises activities to enrich students’ cultural experiences and networking.