Greenstone Beach
Protected Area
Piopiotahi
Why dive here
With 46+ marine species recorded in the area - including blue sharks, great white sharks, seahorses and southern right whales - Greenstone Beach offers some of Fiordland's richest reef diving. Water ranges 12-17°C, warmest January, February, March.
We’re big fans of a site that feels genuinely remote, and Greenstone Beach absolutely delivers. Tucked away in Fiordland, it’s a proper expedition to get here, and that’s part of the appeal. The shoreline drops quickly, hitting 5 meters almost straight away, then a 45-degree slope takes you down to 20m. It’s all solid rock and big boulders, draped in thick kelp. Visibility sits around 15m, sometimes a little less, sometimes a little more, but always with that deep, emerald Fiordland hue. Our pick for what to look for here are the smaller things hiding amongst the kelp and rocks – we’ve had cracking encounters with octopus, the shy Jasons nudibranch, and plenty of marblefish peeking out. You’ll definitely spot wrasses and eels, too. We’ve been lucky enough to see small black coral colonies, which are always a treat. Keep an eye out into the gloom for school sharks or dogsharks gliding past. If you’re a diver who appreciates rugged, wild scenery and the thrill of discovery, Greenstone Beach is a true Fiordland experience. It’s not about vibrant colours, but about the raw, untamed beauty of New Zealand’s underwater world.
Safety Notes
Cold water this month (avg 12°C). Drysuit or thick wetsuit (7mm+) recommended.
Reviews for Greenstone Beach
Conditions
Ocean conditions, forecast and tides for Greenstone Beach
Greenstone Beach Ocean Conditions
Monthly averages for Greenstone Beach, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-44.66, 167.9) (28km away)
October Averages
Sea Temperature
12°C
54°F · Range: 11.5–13.4°C
Current Speed
11.4 cm/s
Direction: NE (37.9°)
Chlorophyll-a
0.27 mg/m³
Clear water
Salinity
34.67 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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