OLMC is a Junior high school for girls (Years 7 to 10). Built in 1961, its campus overlooks Burraneer Bay and the Royal National Park, and its compact grounds retain the garden atmosphere of the original property. After completing their School Certificate, the girls go on to complete their secondary schooling at De La Salle Senior School in Cronulla. OLMC seeks to maintain a happy, effective learning environment, with courses and policies tailored to assist the spiritual, social, intellectual, physical, and emotional development of each student.
Facilities: Contemporary learning environment including: Library, multi-purpose games area, swimming pool, specialist rooms for visual arts, technology, computers, music, science and textile and design, food technology, and design and technology.
Electives Years 9 and 10: Drama, Commerce, Physical Activity & Sport Studies, Information Software Technology, Food Technology, Indonesian, Music, Visual Arts, Textiles Technology, French, Industrial Technology Multimedia.
Co-curricular activities: Basketball and netball are especially popular in the school and there is an emphasis placed on swimming. Other options include athletics, gymnastics, aerobics, touch football, bowling, cross-country, softball, oztag, tennis, hockey, cricket, soccer, debating, drama, public speaking, band, dance, choir, creative dance, yoga, vocal ensemble, dance troupe and swing group.
The college is a member of the Shire Combined Catholic Colleges.
Welfare and personal development: An active student council helps support a pastoral care system, which features significant parent involvement in the school. Peer support, special education, gifted and talented extension, literacy and numeracy intervention, careers and work experience, and the College retreat in Year 10 further enhance this aspect of College life.