Waikare Whangamarino Wetlands Restoration
Aerial view of a river channel winding through Whangamarino Wetland

Our wetlands

A landscape of international importance, right on our doorstep.

Lake Waikare and Whangamarino Wetland sit together in the lower Waikato — connected by water, history, infrastructure and community.

7,000 ha

Whangamarino Wetland — bogs, fens, swamps, rivers, open water

3,442 ha

Lake Waikare open water (Waikato Regional Council)

1989

Recognised under the Ramsar Convention

2nd largest

Freshwater wetland in the North Island (DOC)

Aerial view of peat bog pools within Whangamarino Wetland beside farmland

Whangamarino

A mosaic you can’t find anywhere else nearby

Whangamarino is a complex of peat bogs, fens, swamps, rivers and open water. That variety is exactly why it matters: different water depths, soils and vegetation support different species, including threatened native plants, fish and birds.

The Department of Conservation describes Whangamarino as one of New Zealand’s largest wetlands and, more precisely, the second-largest freshwater wetland in the North Island. Its 2026 assessment reports that ecological condition has deteriorated and calls for collaborative restoration action.

Whangamarino also forms part of the Lower Waikato flood-control system — which is why ecological restoration and resilient infrastructure have to be considered together.

Flax and reeds framing the open water of Lake Waikare

Lake Waikare

The largest lake in the lower Waikato catchment

Lake Waikare is a large, shallow lake — 3,442 hectares of open water. It formed when a tributary of the Waikato River was blocked by pumice from the Taupō eruption, and for most of its life it was ringed by raupō, flax, sedges and kahikatea, with dense beds of native water plants below the surface.

Today its water quality is hypertrophic: highly enriched, highly turbid and dominated by algae rather than the aquatic plants that once held the sediment in place.

It is still a living lake — home to tuna, waterfowl, black swan and thousands of birds — and it is still recoverable. Improvement, not perfection, is the goal.

Life here

Birds, tuna and native plants — the reason all of this matters.

Wetlands are among the most productive habitats in the country. Whangamarino’s wetlands support native flora and fauna and are particularly important habitat for native birds, fish and other freshwater species.
Royal spoonbills and a white heron feeding in the wetland
Royal spoonbills and a white heron feeding in the wetland
Black swans spread across the calm surface of Lake Waikare at dawn
Black swans spread across the calm surface of Lake Waikare at dawn
A white heron beside a black swan among wetland reeds
A white heron beside a black swan among wetland reeds
Whangamarino wetland vegetation with a distant hill
Whangamarino wetland vegetation with a distant hill

Protect the wetland and it keeps protecting us.

Learn what stands in the way — and what we can do about it.