Troppo's
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.
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
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.
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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)
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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