5-20m
    Great Barrier Reef, Australia
    Michaelmas and Upolu Cays

    Troppo's

    Best months: Feb–Mar

    Protected Area

    Michaelmas and Upolu Cays

    Why dive here

    With 154+ marine species recorded in the area - including hammerhead sharks, sea turtles, tiger sharks and napoleon wrasse - Troppo's 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 · max 5-20m
    StandoutExceptional marine biodiversity

    Troppo's, for us, is a perfect snapshot of the outer reef. It’s got that classic Great Barrier Reef feel, with big table corals that just seem to go on forever, and the water is usually that intense blue you only get out here. We love dropping in over a coral bommie, then just drifting along the wall. Keep an eye out for whitetip reef sharks cruising the edge; we’ve seen them more often here than at some of the flashier spots. The real joy, though, is the sheer density of fish. Schools of fusiliers are often so thick they can block out the light for a second, and then you push through them into a cloud of iridescent chromis. It’s not just the quantity either, but the variety – we’ve spotted bullethead and batavian parrotfish here, alongside a few different butterflyfish like the sunburst and the latticed. It’s a site that rewards slow, observant diving. Our pick for a good time here is mid-morning, just after the sun has properly risen to light up the corals, but before any potential afternoon chop kicks in.

    Typical Troppo's Dive Profile

    5mSafety Stop0m5m max~60 min estimated bottom time

    Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

    Safety Notes

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

    Today05:5218:1512h 23m daylightGolden hour 17:46

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    Conditions

    Ocean conditions, forecast and tides for Troppo's

    Troppo's Ocean Conditions

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

    ExcellentGreatGoodFairPoor★Best monthsThis month

    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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