The Weston Creek Mess forms the focus of social activity for ACSC course members, CDSS course members and all staff employed at the Australian Defence College (ADC).

Membership of the Mess is open to all military and civilian personnel posted to ADC, and to all course members of ACSC and CDSS. In many regards our Mess is unique, with a blend of different Services, ranks, nationalities and cultures.

The Mess provides buffet or packaged lunches for members and guests, and a daily morning tea for each course. It is also the venue for staff and course functions, and for a range of external lectures and events.

The position of Mess President is held by the Chief of Staff, Joint Education, Training and Warfare Command.