Lake Opouahi and its associated waterways were traditionally significant sources of kai (food) for hapū (local people). The lake and waterways supplied uniquely tasting tuna, kākahi (freshwater mussels), kōura (freshwater crayfish) and kōkopu (freshwater fish), as well as the daily water supply, being a deep, spring-fed lake.
A 3 km predator proof fence has been constructed around the 6 ha lake, and provides 40 hectares of safe habitat for North Island brown kiwi chicks while they gain size to defend themselves against the attack of stoats. The ECOED Trust offers educational kiwi experience tours. A 30-minute loop walk takes you around the lake through regenerating bush full of birds. This is also a Kiwi Guardians site – find the code word and earn a medal.