The Y Camp Adair is listed as a charity at 2487 Hunua Rd, under Owairaka, Auckland City, with a Google rating of 4.6. The name suggests a camp run by the YMCA, and Hunua Rd is usually associated with the Hunua area south-east of Auckland, so check the address before you travel.
A good charity is clear about what it does, who it helps and how it uses donations. In New Zealand, registered charities are listed on the Charities Services register, where you can look up their purpose and annual returns. If a charity runs a camp or programme, ask about supervision, staff vetting, safety plans, what to bring, what is included and how medical needs and dietary requirements are managed. Regulars check dates and costs early, ask whether funding or subsidies are available and talk to the organisers before booking for children.
For families and groups in Auckland, The Y Camp Adair is worth contacting to confirm what is on offer and how to book.