In keeping with the "CARE" component of Siena's ethos, students are offered a wide range of opportunities to engage in social justice and community service. Some of these are specific to a particular year level.
The traditional "formal" has been re-badged to a Benefit Ball. The cohort fundraise for a locally based and funded cause and make the presentation of the funds the focus of the evening.
All Year 10 students are involved in a structured Community Assistance program for a term. This involves spending Wednesday afternoons working at facilities for people with disability, aged care and retail shops such as Lifeline and St Vincent de Paul.
Year 8 students provide care packs for students in the community kinders in La Granja, Philippines which Stella Maris has a sister parish relationship.