The Opening Ceremony of CWC 300 was held during communal dinner on 15 September 2015, which featured a variety of HK-style street food including cellophane steamed rice rolls, fried rice with beef, stir-fried noodles, deep fried taros, sweet potatoes, and sweet soup. A Quidditch match was held on 16 September 2015 in the College piazza, with decorations making reference to the Harry Potter movies. Besides outdoor activities, SU members also organized a Room Escape in the activity rooms on 21 and 22 September 2015.
The celebration culminated in the closing ceremony with a Carnival in the evening of 23 September 2015. College students and exchange students enjoyed singing and dancing performances, and became close friends through interaction in such a festival atmosphere.