Eight-year-old Finn Priest-Jacobs has a special connection to the Waikato River, New Zealand’s longest. Recently, he helped River Mixer “collect” this waterway, a hands-on introduction to environmental care. But Finn’s involvement is just one part of the Waikato’s story, which includes dramatic geological forces, deep cultural ties for the Māori people, and the inspiring work of Finn’s mother, Ceana, with Outdoor Kid, nurturing future conservationists. Explore the many layers of the Waikato River, seen through Finn’s growing appreciation and the collective desire to protect this vital taonga (treasure).