CAS stands for Creativity, Action and Service. All IB students are involved in a balanced range of activities or a single project incorporating all three elements.

Creative activities include art, design, drama, photography, music, working on the school magazine, theatre design, and initiating and planning service projects.

Action must involve physical activity and is usually a sport such as hockey, squash, rowing, sailing, tennis, athletics, or aerobics. These activities should be focused on achieving a personal goal. Service activities may count as action if they are physical, such as environmental work or sports clubs in primary schools, or for the disabled or disadvantaged.

Service activities might be helping with Special Needs groups, the elderly, hospital visiting, environmental work, helping in charity shops, involvement with Amnesty International, helping run school activities, or gaining first aid qualifications.

The CAS programme gives the students a broad and balanced education for life. It allows them to explore their talents and discover their strengths outside the classroom. It encourages them to try new activities and it develops their cooperation and leadership skills.