The theme of “Hong Kong under ‘One Country, Two Systems’” mainly explains the relationship between the country and the Hong Kong Special Administrative Region since Hong Kong’s return to the motherland. It helps students understand the meaning of “one country, two systems”, the constitutional basis founded upon the Constitution and the Basic Law, as well as enhances their understanding of the latest development of the country for cultivating a sense of national identity. “Our Country since Reform and Opening-up” helps students understand the development process of the country from domestic and international aspects. “Interconnectedness and Interdependence of the Contemporary World” addresses the topics of economy, technology, sustainable development and public health, helping students widen their horizons through understanding the situations facing humankind in the contemporary world. The Mainland study tour provides opportunities for students to gain a first-hand understanding of the development of our country and people’s life.