Yan Chai Hospital Wong Wha San Secondary School – Sai Kung Cultural Museum commenced its operation in February 2009. It is divided into two parts, namely the Sai Kung Cultural Museum and the School History Museum. There are three exhibition areas inside the Sai Kung Cultural Museum which respectively gives a brief introduction on the Museum itself, displays the traditions of villages in Sai Kung, as well as gives an account of the past and present of Sai Kung, so as to present the simple and unsophisticated side of traditional villages and the prosperous side of modern Sai Kung. The School History Museum briefly introduces the course of development of Yan Chai Hospital Wong Wha San Secondary School  from its foundation in 1999 up till present. Precious photos and articles from school activities are also displayed to enhance public’s understanding about the school, as well as to let past and present teachers and students share their memories together.