Yuen Chau Tsai Park, Urban recreational park in Tai Po District, Hong Kong

Yuen Chau Tsai Park spreads across land reclaimed from what was once an island, with walking paths and designated picnic spots throughout. The site has multiple entrances and overlooks Tolo Harbour on its edges.

Yuen Chau Tsai Park was built in 1991 on the embankment at the mouth of the Lam Tsuen River in Tai Po, on the riverbank opposite Tai Po Waterfront Park. Within the park stands the Yuen Chau Tsai Environmental Protection Research Centre, housed in a residence built in 1905 for the Colonial Secretary; since 1986 the building has been used by WWF Hong Kong. The park is managed by the Leisure and Cultural Services Department.

The park's name, Yuen Chau Tsai, means "little round island", recalling the site's past as an island before reclamation joined it to the Tai Po shore. The 1905 former Colonial Secretary's residence inside the park has housed WWF Hong Kong's environmental protection research centre since 1986, so the grounds are used for nature education as well as leisure.

The park lies on the embankment along Wan Chin Road at the mouth of the Lam Tsuen River, opposite Tai Po Waterfront Park. The WWF Hong Kong environmental education centre occupies the former Colonial Secretary's residence inside the park. The park is managed by the Leisure and Cultural Services Department.

The land was actually an island before land reclamation connected it to the mainland. This geographical transformation makes the park an interesting example of how Hong Kong has changed over time.