Whangarei Boys' High School's Al Kirk has called it quits after 15 years in the top job.
The headmaster announced his resignation last week although he will not officially leave the role until next July.
"I've been doing this job for 15 years and I'm just as passionate about it as I've always been," Mr Kirk said.
"While I would like to carry on, I would also like to go out on top."
Mr Kirk said he was granted study leave for term one next year as recognition for the last 15 years work. He will spend some of that time preparing for his sabbatical to Europe in term two.