Norman Reef - Caves
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 - Norman Reef - Caves offers some of Great Barrier Reef's richest reef diving. Water ranges 24-30°C, warmest January, February, March.
Norman Reef’s Caves site, often just called "The Caves" by the liveaboard crews, has always been one of our favourites for a relaxed second dive. It’s got this great mix of shallow, sun-drenched coral gardens for newer divers and some genuinely fun swim-throughs for those who like a bit more exploration. We’ve probably logged more bottom time here just drifting through the dappled light of the larger caverns than anywhere else on Norman. What really gets us about The Caves is the sheer number of those Filament-finned Parrotfish – they’re everywhere, munching away, leaving little puffs of sand. Keep an eye out for green turtles too; they’re regular visitors, often just chilling near the cave mouths. The coral here is fairly resilient, mostly hard corals, with plenty of little nooks for clownfish and their anemones. Visibility usually hovers around 15 metres, which is perfectly good for navigating the twists and turns inside. For the deeper sections, maxing out at 16 metres, you can often spot a white-tip reef shark cruising past. Our best tip? Go early in the morning for the quietest experience and the best light filtering into the swim-throughs.
Typical Norman Reef - Caves 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.
Always perform a 3-minute safety stop at 5m before surfacing.
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Conditions
Ocean conditions, forecast and tides for Norman Reef - Caves
Norman Reef - Caves Ocean Conditions
Monthly averages for Norman Reef - Caves, 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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