Reotahi Bay
Protected Area
Whangarei Harbour
Why dive here
With 79+ marine species recorded in the area - including blue sharks, dolphins, hammerhead sharks, humpback whales and orcas - Reotahi Bay offers some of Poor Knights Islands's richest reef diving. Water ranges 15-22°C, warmest January, February, March.
Reotahi Bay, a shore dive, often gets overlooked for the Poor Knights' flashier sites, but we think that's a mistake. It’s shallow, maxing out at 9m, and the visibility averages 4m, so it’s not about grand vistas. Instead, this is a dive where you need to slow right down, move inches at a time, and really look. We love drifting over the seagrass beds, scanning for pipefish and seahorses – they’re masters of disguise, so patience pays off. You'll often find bubble snails here too, their delicate shells a perfect counterpoint to the rough oysters clinging to the boulders nearby. The main draw for us is the collection of old mooring blocks scattered on the sand. These aren't just rubble; they’ve become miniature ecosystems, magnets for blennies and triplefins like the Spotted Robust Triplefin, darting in and out of the nooks. You might even spot a snake eel poking its head from the sand. It’s a completely different vibe from the offshore pinnacles, quieter, more intimate. We'd suggest this site for macro enthusiasts or newer divers wanting to practice buoyancy in a calm, interesting environment.
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Conditions
Ocean conditions, forecast and tides for Reotahi Bay
Reotahi Bay Ocean Conditions
Monthly averages for Reotahi Bay, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-35.84, 174.61) (14km away)
October Averages
Sea Temperature
16°C
60°F · Range: 14.8–17.1°C
Current Speed
11.4 cm/s
Direction: SE (142.1°)
Chlorophyll-a
0.388 mg/m³
Moderate productivity
Salinity
35.44 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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