Ruby Reef
Why dive here
With 154+ marine species recorded in the area - including hammerhead sharks, sea turtles, tiger sharks and napoleon wrasse - Ruby Reef offers some of Great Barrier Reef's richest reef diving. Water ranges 24-30°C, warmest January, February, March.
Ruby Reef is one of those places where we love to spend a whole day, doing multiple dives. The reef itself isn't a massive structure, but the sheer density of life, particularly small stuff, is what draws us back. We’re talking about the kind of place where you can spend twenty minutes in a square metre, spotting more than you would on an average drift. Look closely, and you’ll find Leopard Blennies perched on coral heads, tiny Striped Triplefins darting in and out of crevices. We’ve had incredible luck here finding Flasher Scorpionfish, their colours just popping against the reef. The Montipora and Cauliflower corals form a beautiful backdrop, especially when the light hits them right. Keep an eye out for Mimic Surgeonfish – they’re masters of disguise here. It's a site for divers who appreciate the small wonders, who like to slow down and really observe. If you rush it, you’ll miss the best bits.
Safety Notes
Strong currents typical this month (avg 30 cm/s). Good buoyancy control essential.
Reviews for Ruby Reef
Conditions
Ocean conditions, forecast and tides for Ruby Reef
Ruby Reef Ocean Conditions
Monthly averages for Ruby 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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