On Saturday former students were able to walk around the school, which had changed since when the majority of them were there, he said.
"The past pupils were all full of praise for the school."
During the celebrations a memorial sculpture was unveiled with inspiration from stain glass windows and the four Our Lady of the Missions founding sisters.
Jubilee committee member Ashton Northcott said the day, which had been three years in the making, was a huge success.
"It all went really smoothly and there was a great turnout."
Saturday night's speeches were very popular, with past pupil and former principal Sister Mary Rose Holderness eliciting cheers from the crowd when she shared stories from various decades.
She was principal from 1986 to 1998 and was the last mission sister to hold the position.
Another great part of the weekend was seeing the bond between all the students, she said.
"The current students always speak of what they call the sisterhood of Scared Heart where all year levels are connected and look out for each other.
"It was awesome to see this on a wider scale with past pupils mixing with current students.
"A definite SHC sisterhood vibe was evident at every event throughout the weekend."
