Lighthouse Bommie
Why dive here
With 154+ marine species recorded in the area - including hammerhead sharks, sea turtles, tiger sharks and napoleon wrasse - Lighthouse Bommie offers some of Great Barrier Reef's richest reef diving. Water ranges 24-30°C, warmest January, February, March.
Lighthouse Bommie, despite its rather functional name, is one of our favourite little corners of the Great Barrier Reef. It’s not some grand canyon or vast wall, but a beautiful, isolated pinnacle rising from the sandy seafloor, absolutely cloaked in coral. We’re talking dense stands of staghorn coral, creating little alleys and overhangs, mixed in with big, bold common mushroom corals. Drop down and you'll often find schools of six-line wrasse darting through the coral branches, almost too quick to follow. Look closer, and you’ll spot the Bugeye Dottybacks peeking out from their crevices, alongside some surprisingly colourful pygmy gobies if you’ve got a good eye. We’ve found the best light hits the bommie mid-morning, really bringing out the corals' colours. It’s a site that rewards slow, meticulous exploration – perfect for photographers or anyone who likes to really soak in the smaller details rather than chasing big pelagics. It’s fairly sheltered, making it a good choice when the outer reef is a bit choppy.
Typical Lighthouse Bommie 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 Lighthouse Bommie
Lighthouse Bommie Ocean Conditions
Monthly averages for Lighthouse Bommie, 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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