Her lessons, at Taupō Bay and Matauri Bay, encouraged growth through risk-taking as well as better understanding of the natural environment.
She began in May, and had so far taught girls aged 6-14. She planned to expand to adult women after fielding a large number of enquiries.
Fellow KKHS Year 12 student Pipi Johnson-Phillips has published a children's book promoting use of New Zealand sign language, inspired by an encounter with a customer at her weekend job in a café.
''She was using sign language and I couldn't understand her. She got quite frustrated. If sign language was taught at primary schools there'd be more social inclusion," she said.
Her book used English text with key words in sign language, illustrated with photos by her uncle Adam Jones, a Kerikeri-based wildlife documentary-maker, telling the story of a whale shark's woes after eating plastic. Balancing the project with other schoolwork was difficult, but had taught her about time management, sign language and how to format a book.
All products and businesses will be on show at the YES Trade Fair on August 14, 8am-1.30pm.