Glenfern Sanctuary on Great Barrier Island is a haven for wildlife and conservation enthusiasts. This privately-owned sanctuary, covering 83 hectares, focuses on protecting and restoring native flora and fauna. Visitors can explore the sanctuary on a variety of walking tracks, including a canopy walk that leads through ancient pohutukawa trees, offering incredible views of the island and beyond.

The sanctuary is home to rare and endangered species, such as the North Island kaka, kererū, and black petrel. It also plays a vital role in controlling invasive pests to support the flourishing of native birds and plants. For those interested in conservation efforts, guided tours offer insight into the sanctuary’s efforts to maintain the biodiversity of Great Barrier Island.