St Mary's vibrant extra-curricular programme provides for every interest. From surfing to sewing, dancing to debating, poetry to piano, students can find an array of extracurricular activities in which they develop new skills, make friends with similar interests and broaden their learning experience. 

Competition at Interhouse level takes place in sport, debating, public speaking, mock trials, drama, dance and music.

There are many student groups that also exist within the group, promoted annually at a lunchtime event called Market Day, when many of the clubs within the school operate stalls for the girls to find out more information and sign up. Details of the different clubs and societies.

The Outdoor Education programme, a fundamental part of learning at St Mary's, is centred on camps for Years 5 to 9 and Year 11, which are designed as a component of the school curriculum, aimed at delivering the best possible education for girls. St Mary's at Metricup: The Lady Treatt Centre for Learning and Leadership provides a base for our camp programme. There are countless opportunities to take part in extra-curricular outdoor education. The Duke of Edinburgh's Award Scheme, and scuba diving off the Abrohlos Islands and Exmouth are particularly popular activities.