"There is always something different about the kids at the end of the course. They have changed. The course has a lasting impact," he added.
Outward Bound school director Simon Graney said the students had been chosen for their leadership and commitment. Their three weeks had taught them to build courage and resilience, to experience success as a member of a team, identify their own values, develop an appreciation for the natural environment and experience being of service.
For Kamo High School student Jordan Dwight it had been a place of both learning and of healing.
"Before I left I wasn't a very energised or happy person," he said.
"The instructors taught us that anything can be changed by the way you think about it. I'm a much happier, positive person, and the things I used to react to negatively I have now learned how to change and manage my attitude towards.
"Outward Bound was also the place I had a chance to process my mother's passing two years ago. One of my watchmates experienced similar with the death of her father, so we had lots of chats and it was great to relate to her. I've come to grips with it now, and being away, challenging myself at Outward Bound, definitely had an impact on that part of my life. It was a place of healing."