Principal Raquel Charet said Mrs Heinecke had become “an institution” at GRG.
“Her tireless efforts, determination and dedication to educating young people has transformed the lives of countless students, teachers and parents,” she said.
“We will miss her greatly and wish her all the very best in the next exciting stage of her life.”
Working with Nina for 27 years, teacher Tim Boyd added: “She has been a wonderful leader who developed a strong culture of community and service at the school.”
Students formed a guard of honour to see her off for the very last time.
