Ottaway Patch
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 - Ottaway Patch offers some of Great Barrier Reef's richest reef diving. Water ranges 24-30°C, warmest January, February, March.
Ottaway Patch gives you a good cross-section of what the Great Barrier Reef is all about. You’ll find healthy hard corals mixed with some softer varieties, attracting the usual reef suspects – parrotfish, surgeonfish, and the occasional turtle gliding past. It's a reliable dive for those looking for a relaxed exploration of a typical GBR patch reef, suitable for most experience levels.
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 Ottaway Patch
Ottaway Patch Ocean Conditions
Monthly averages for Ottaway Patch, 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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