Aotearoa New Zealand

Bring marine life back
to hard coastlines

Restoring Sealife works with iwi, scientists, councils, and coastal partners to turn bare seawalls into habitat - and to show what changes when monitoring is built in from the start.

Diver floating above restored marine habitat in clear coastal water
Evidence Base

What public sources currently show

19
new protection areas now shape the Hauraki Gulf restoration context under the Hauraki Gulf / Tīkapa Moana Marine Protection Act 2025

DOC marine protections

The Problem

Concrete coastlines,
depleted waters

Across Aotearoa, our harbours and marinas are edged with smooth concrete and steel - seawalls, pilings, and breakwaters that provide almost zero ecological habitat. Where natural rocky shores once teemed with life, engineered surfaces offer nothing for marine species to cling to, shelter in, or feed from.

The Hauraki Gulf / Tīkapa Moana is facing depleted shellfish beds, disappearing seagrass meadows, and reefs overrun with kina - the result of overfishing, sedimentation, and the compounding effects of climate change. The Hauraki Gulf Forum's State of Our Gulf 2023 report describes continued ecological collapse across the marine park.

The Hauraki Gulf / Tīkapa Moana Marine Protection Act 2025, which came into force on 25 October 2025, establishes 19 new protected areas - two marine reserve extensions, 12 high protection areas, and five seafloor protection areas - and grows marine protection in the Gulf from 0.3% to 5.9% of its area.

Act No. 54
Royal assent on 10 October 2025; came into force on 25 October 2025

New Zealand legislation

19 areas
2 marine reserve extensions, 12 high protection areas, and 5 seafloor protection areas established by the 2025 Act

DOC marine protections

5.9%
marine protection coverage in the Gulf, up from 0.3%

DOC marine protections

Our Approach

Seapods: habitat that bolts on

Restoring Sealife focuses on retrofitting modular habitat onto existing coastal infrastructure and making the monitoring legible to the public. Third-party precedent work in Tauranga used Living Seawall Boulder products developed by Reef Design Lab and the Sydney Institute of Marine Science.

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Science-backed design

Habitat surfaces can add rock-pool texture and shelter to otherwise smooth coastal structures, with monitoring used to test what returns.

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Retrofit, don't rebuild

Seapods bolt directly onto existing seawalls, pilings, and breakwaters. No new construction needed - we work with the infrastructure that's already there.

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NZ precedent to learn from

Tauranga Harbour provides an external New Zealand precedent, with 100 installed pods and observed taxa including glass shrimp, cushion stars, bryozoans, ascidians, and triplefin fish.

About

Why this work exists

Aotearoa's coasts are increasingly engineered, but hard infrastructure does not have to stay ecologically empty. Restoring Sealife exists to help coastal partners retrofit habitat into existing structures, translate monitoring into public understanding, and build restoration projects that are locally grounded, evidence-led, and transparent about what is still being tested.

How It Works

From bare concrete to living reef

Identify

Work with iwi, councils, and marine scientists to select priority sites where seapods will have the greatest ecological impact.

Design

Engineer seapod configurations matched to each site's tidal range, wave exposure, and target species - customised for Aotearoa's marine environment.

Install

Bolt seapods onto existing coastal structures - seawalls, pilings, breakwaters - with minimal disruption and no new construction required.

Monitor

Track biodiversity gains through scientific monitoring, citizen science, and community engagement - measuring what comes back and telling the story.

Projects

Projects, precedent, and pipeline

Not every site shown here is at the same stage. Some are under active discussion, and some are future opportunities. We label each one clearly so visitors can see what is built, what is being monitored, and what is still at feasibility stage.

In discussion

Tutukaka Marina

Part of a speculative project pipeline. Public sources do not yet confirm project status, partners, or commitments. Not a confirmed project yet

In discussion

Whangaparāoa / Ōmaha Bay / Kawau Bay

Part of a speculative project pipeline. Public sources do not yet confirm project status, partners, or commitments. Not a confirmed project yet

Get Involved

Help us bring life back
to our coastline

Whether you're a marine scientist, a community group, a coastal landowner, or someone who cares about our oceans - we'd love to hear from you. Sign up for updates as the project develops.

No spam. Updates only when there's something worth sharing.