Goat Island & Hauraki Gulf, New Zealand
    Rabbit Island

    OPITO BAY

    Best months: Jan–Apr

    Protected Area

    Rabbit Island

    Why dive here

    With 72+ marine species recorded in the area - including blue sharks, dolphins, hammerhead sharks, humpback whales and seahorses - OPITO BAY offers some of Goat Island & Hauraki Gulf's richest reef diving. Water ranges 15-21°C, warmest January, February, March.

    Best timeJan–Apr
    WetsuitA 5mm wetsuit
    Marine lifeBlue Sharks, Dolphins, Hammerhead Sharks, Humpback Whales and Seahorses · 72+ species recorded
    Water15-21°C · warmest January, February, March
    CharacterReef dive
    StandoutRich in charismatic marine life

    Opito Bay, just a short hop from Goat Island, has always been a bit of a local secret, even with its recent scallop bed closure. We love it because it’s a brilliant reminder that you don’t need dramatic walls or colourful corals to find incredible life. This is a sandy bottom dive, maxing out at 13 metres, but don’t let that fool you. On a good day, with visibility around eight metres, you’ll find the bottom crawling with surprises. We’ve spent hours here, noses to the sand, spotting octopus peeking from shells, a parade of sea slugs in every colour, and gurnards scuttling past. Our favourite part? The sheer number of triplefins – mottled, spotted, blue dot, oblique-swimming – they’re everywhere, flitting over every ripple. We’ve even had fleeting visits from lemon sole and the occasional blue shark cruising by. It’s a macro photographer’s dream and a perfect spot for divers who love slow, observant dives, especially when you’re done with the usual reef hustle.

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    Conditions

    Ocean conditions, forecast and tides for OPITO BAY

    OPITO BAY Ocean Conditions

    Monthly averages for OPITO BAY, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-36.93, 175.86) (22km away)

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    October Averages

    Sea Temperature

    16°C

    60°F · Range: 14.5–16.9°C

    Current Speed

    1.41 cm/s

    Direction: SE (135°)

    Chlorophyll-a

    0.497 mg/m³

    Moderate productivity

    Salinity

    34.91 PSU

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)

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