Bishop Peter Comensoli celebrated the Mass, at which he congratulated the school community on the milestone of achieving sixty years.
A special smoking ceremony was conducted by Mr Gavi Duncan from Bara Barang Corporation in Gosford, to cleanse bad spirits and pay tribute to the sacred site. Mr Dave Ella, Aboriginal Education Officer for the Diocese of Broken Bay, was also a special guest.
Six Christian Brothers also attended to represent the original founders of the College, although the Brothers are no longer involved in the administration of the school.
Bishop Peter praised students, staff and families for their continued support.
Mr Gleeson thanked the parents, past, present, and future, for their “constant belief and support”.
Mr Gleeson said that the congregation represented just a small portion of the many thousands of people who have been associated with St Leo’s since its opening in 1956, and acknowledged that current staff “carry forward the great name of the College, and enhance the grand honours that have flourished here.”