Endeavour Reef
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 - Endeavour Reef offers some of Great Barrier Reef's richest reef diving. Water ranges 24-30°C, warmest January, February, March.
Endeavour Reef always brings a smile to our faces. It's not the grand, sprawling wall dives you might find elsewhere on the GBR, but it's got a quiet charm, a real sense of discovering something special. We love the way the light plays through the staghorn coral thickets, creating these shifting patterns on the sandy bottom, particularly mid-morning. It feels intimate, like you’ve been let in on a secret. We’ve spent hours here just hovering over a single patch of large meandroid brain coral, watching the black-blotched wrasse dart in and out, or spotting the incredibly camouflaged Kops’ tongue sole perfectly flat against the sand. Look closely for Smith’s cuttlefish, they’re masters of disguise here, often blending into the coral until they decide to put on a colour show. It’s a site for those who appreciate the smaller details, the patient observers. If you rush it, you’ll miss the best bits. Our advice? Go slow, really slow, and bring a good macro lens if you’ve got one. The reef tops are around 10-12 metres, making it a comfortable dive for extended bottom times, and generally, currents are manageable.
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 Endeavour Reef
Endeavour Reef Ocean Conditions
Monthly averages for Endeavour Reef, 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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