Ravenswood is the first girls’ school on Sydney’s North Shore to offer Cadets to its students from Years 8–12. Students can join the Knox Grammar Cadet Unit in Term 4 of Year 8 and continue with the program until Term 2 of Year 12.

In 2011, Knox welcomed its first 40 female recruits into the Knox Grammar Cadet Unit. Today, there are more than 130 Ravenswood students in the over 800 strong unit, with a number of students filling senior leadership ranks, including CUO (Cadet Under Officer) and the appointment of 2IC (Second-In-Charge) of the unit.

Cadets is one example of Ravenswood seeking to partner with boys’ schools. Through these types of programs, Ravenswood can maintain the integrity of a girls’ school and continue to advocate girls’ education in a single-sex environment, while at the same time, providing students the opportunity to develop social skills with boys.

Being involved in Cadets encourages service, leadership, teamwork and outdoor skills. Students learn to be confident, self-sufficient and to 'have a go' in mentally and physically challenging activities.

Key activities of the Cadet program include:

Biennially, a group of current and former Ravenswood Cadets trek the Kokoda Trail in Papua New Guinea. The Cadets, and some of their parents, walk the 96 kilometres from Kokoda to Owers’ Corner, tracing the path followed by the Australian troops in the 1942 Kokoda campaign.