Image: Paul Pope | ©
Small rocky island covered in low green vegetation surrounded by calm blue ocean beneath a clear sky.
Ōkaihae Marine Reserve

Located in the Otago region

Ōkaihae (Green Island) is a nature reserve and one of the only predator-free vegetated islands in the south east region.

This marine reserve will come into effect 1 July 2026.

Ōkaihae (Green Island) Marine Reserve is boat access only. Landing on the island is prohibited without permission from DOC. 

Check weather, swell, tides and local notices to mariners. Respect rāhui, seasonal restrictions and wildlife closures where signposted.

Stay at least 1 km/0.5 nm from the island on the north, east and west facing sides, and at least 1.5 km/0.8 nm on the southern, seaward side of Ōkaihae/Green Island if fishing.

Know your boundaries

  • Download the Marine Mate App, which can show your location in relation to the marine reserve boundaries when used with GPS capable smart phones.
  • Download the GPS files available through the yellow map and boundaries button above. Input the coordinates into your chart plotter.

Know the rules

This marine reserve is a ‘no take’ area, meaning fishing and harvesting are not permitted.

  • No fishing of any kind.
  • Don't take or kill marine life.
  • Don't remove or disturb any marine life or materials.
  • Don't feed fish - it disturbs their natural behaviour.

Recreational, educational, and scientific activities

Recreational, educational and scientific activities are encouraged if they do not disturb or endanger marine life or natural features. A permit is required from DOC for any scientific research within the reserve.

Anchoring in marine reserves is permitted but take care to avoid damaging sensitive habitats. 

Boats are permitted to launch from and transit through marine reserves. It is not an offence to carry fish or marine life within a marine reserve if it has been caught outside of the marine reserve area. 

Report illegal or suspicious activity

Don't take, disturb, kill or damage anything within the reserve - it's illegal. If you see people taking anything from the reserve, report the activity as soon as possible.

You can call 0800 4 POACHER (0800 476 224) or 0800 DOCHOT (0800 362 468).

It is also an offence to pollute or litter the reserve, discharge any firearm in or into the reserve or erect any structure in the reserve.

Ōkaihae (Green Island) is a striking offshore island rising 42 m above sea level, with coastal scrub and herbaceous vegetation that supports abundant wildlife both on land and in surrounding waters. It is a key habitat for seabirds, including hoiho/yellow-eyed penguin, kororā/little penguin, tītī/sooty shearwater, fairy prion, Stewart Island shag, royal spoonbill, and variable oystercatcher.

The island is also an important haul-out site for kekeno/New Zealand fur seals, while nearby reefs host diverse marine life such as reef fish and kōura/rock lobster within extensive kelp forests. Together, the island and its surrounding marine environment offer a unique and ecologically rich coastal experience.