Poor Knights Islands, New Zealand
    Whangarei Harbour

    Reotahi Bay

    Best months: Jan–Apr

    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.

    Best timeJan–Apr
    WetsuitA 5mm wetsuit
    Marine lifeBlue Sharks, Dolphins, Hammerhead Sharks, Humpback Whales and Orcas · 79+ species recorded
    Water15-22°C · warmest January, February, March
    CharacterReef dive
    StandoutRich in charismatic marine life

    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.

    Today05:4618:3312h 48m daylightGolden hour 17:59

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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)

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    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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