Wai Kōkopu, the community-led programme to replenish and revitalise the health of the Waihī Estuary.

Discover the agricultural event of the year that promises to redefine farming for a better future! Join us at the “Our Choice: Better Farming, Better Business, Better Future” Agri Summit.

📅 Save the Date: March 13, 2024
📍 Location: Bay Venues – Stadium Lounge
⏰ Time: 9:30 am – 4:30 pm

Gain insights, explore what leaders across industry, forestry, pastoral farming and business are up to and take part in design thinking on turning knowledge into action across NZ.

The Waihī estuary, located in Maketū, is in a poor and declining ecological state and does not consistently meet guidelines for safe swimming and shellfish gathering. 

Our programme is on a mission to change this. Together, with the community, we are harnessing the power of catchment-wide collaboration and innovation to build healthy, more resilient waterways that will heal the Waihī estuary. 

The unhealthy state of the Waihī estuary

One of the worst

It’s one of the five most degraded estuaries in the country.

Lost 97% of wetlands

Just 3% of the wetlands that once supported large native bird and fish populations remain.


E. Coli levels in the estuary continue to rise and are around 430% higher than what is safe to eat.  We need to bring E.Coli down by at last 50%. 

Unsafe food gathering

Poor freshwater quality feeding the estuary has resulted in seagrass loss, algal blooms and shellfish that are regularly unsafe to eat.

High nitrogen

Nitrogen and phosphorus loads to the estuary are high; we need to bring total nitrogen down by 66%  and Phosphorus down by 30%.

Unsafe swimming

Mahinga kai (natural resource) and recreational values have declined.

Our programme

To return the Waihī estuary to a healthy ecological state, we are focusing on initiatives from bespoke environmental farm plans to riparian planting and educational sessions at a sub-catchment and catchment level.

By fostering awareness and shared responsibility for the health of the Waihī Estuary, we hope to empower our community to embrace better practices, decisions and outcomes for the lands, waters and biodiversity.

Our measures for success are simple - when the kōkopu, are flourishing from the sea to the mountains and our estuary is rich with giant pīpī again, we will then know the Waihī Estuary is returning to good health.

Fly the catchment

Explore Our Audited Accounts

Stay informed about our financial transparency. Before our Annual General Meeting (AGM), we provide our audited accounts for public review, ensuring you understand our financial performance. Additionally, we make AGM minutes and agendas available early, promoting an informed and inclusive atmosphere during meetings. Your involvement and questions are valued. Contact us for more information. Thank you for your ongoing support, helping us achieve our shared goals.

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Contact us

The Waihi Estuary

Bay of Plenty


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