Poor Knights Islands, New Zealand
    Poor Knights Islands

    Ngaio Rock

    Best months: Jan–Apr

    Protected Area

    Poor Knights Islands

    Why dive here

    With 79+ marine species recorded in the area - including blue sharks, dolphins, hammerhead sharks, humpback whales and orcas - Ngaio Rock 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

    Ngaio Rock is one of those sites that just feels right, a proper Poor Knights classic. It's a stout chunk of rock rising from a sandy bottom around 20 metres, and we love hugging its walls. The reef here is just smothered in growth – sponges, anemones, and a kaleidoscope of ascidians. You'll find butterfly perch fluttering in every crevice and often see schools of blue maomao thick enough to cast shadows. Our favourite move here is a slow circumnavigation. It's not a huge site, so you can take your time, peering under ledges for octopus or the vibrant Luculentus Wrasse. Keep an eye on the sand too; we’ve spotted Southern Eagle Rays cruising by more than once. The maximum depth of 24 metres means it's pretty accessible for most certified divers, and the sheltered nature means it’s a good fallback when other spots are getting a bit surgey. It’s a consistently rewarding dive, perfect for photographers or anyone who just wants to soak up the unique Poor Knights vibe.

    Today05:4518:3212h 47m daylightGolden hour 17:58

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    Conditions

    Ocean conditions, forecast and tides for Ngaio Rock

    Ngaio Rock Ocean Conditions

    Monthly averages for Ngaio Rock, 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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