Great Barrier Reef, Australia
    Annan River

    Stonor Patch

    Best months: Feb–Mar

    Protected Area

    Annan River

    Why dive here

    With 154+ marine species recorded in the area - including hammerhead sharks, sea turtles, tiger sharks and napoleon wrasse - Stonor Patch offers some of Great Barrier Reef's richest reef diving. Water ranges 24-30°C, warmest January, February, March.

    Best timeFeb–Mar
    WetsuitNo wetsuit needed, or a rash guard
    Marine lifeHammerhead Sharks, Sea Turtles, Tiger Sharks and Napoleon Wrasse · 154+ species recorded
    Water24-30°C · warmest January, February, March
    CharacterReef dive
    StandoutExceptional marine biodiversity

    Stonor Patch. Now that’s a name that doesn’t exactly scream "epic dive site," does it? Sounds more like a poorly-researched hairpiece. But trust us, don’t let the bland name fool you. We’ve logged a fair few dives here, and it's consistently one of our favourites in the outer GBR. What makes it special? Well, it’s all about the coral architecture. We’re talking enormous colonies of yellow scroll coral, like ancient, gnarled sculptures reaching for the surface. And the staghorn formations? Some of the most intricate we’ve seen, creating mazes and gulleys that are just begging to be explored. Light filters down through these structures, creating shifting patterns on the sandy bottom. Keep an eye out for cleaner mimic blennies darting around the various rock cods that call this place home. You’ll also spot plenty of rainbow wrasse flitting between the branches of the montipora. The currents here are generally pretty mellow, making it a relaxed drift. We’d suggest going in the morning; the light just hits those big scroll corals perfectly then. It's a great spot for photographers looking for interesting coralscapes and macro life, but equally rewarding for anyone who just wants to glide through some truly impressive reef.

    Safety Notes

    Strong currents typical this month (avg 30 cm/s). Good buoyancy control essential.

    Today05:5518:1712h 22m daylightGolden hour 17:48

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    Conditions

    Ocean conditions, forecast and tides for Stonor Patch

    Stonor Patch Ocean Conditions

    Monthly averages for Stonor Patch, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-15.65, 145.72) (5km away)

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    October Averages

    Sea Temperature

    26°C

    80°F · Range: 24.5–29°C

    Current Speed

    30.07 cm/s

    Direction: S (183.8°)

    Chlorophyll-a

    0.057 mg/m³

    Very clear (oligotrophic)

    Salinity

    35.08 PSU

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

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