Lake Ōmāpere is a shallow, ecologically significant lake located in the Northland region of New Zealand's North Island. Sitting within a landscape shaped by gumland and peat bogs, the lake drains southward through its only outlet, the Utakura River, creating a connected fishery of considerable importance to both anglers and the local Māori community. The lake was vested to the Lake Ōmāpere Trust in 1954 by the Maori Land Court and holds deep cultural significance as a taonga (treasure) to Ngāpuhi, historically providing tuna (eel), torewai, raupo, kuta, and harakeke. With an average depth of just 2 metres and a maximum depth of 2.6 metres, this is an exceptionally shallow water body with an annual seasonal water level variation of approximately 1 metre. The surrounding wetlands and peat-influenced waters give the lake a characteristic tea-coloured tint, a hallmark of the broader Northland peat landscape.