

Lighthouse Bommie is a reef site off Queensland that rewards intermediate divers with a solid mix of pelagic action and reef life across depths ranging from 3 to 25 metres. Visibility is variable, so conditions can shift, but a mild current generally keeps diving manageable. Reef sharks and turtles are regular visitors, while barracuda, trevally, mackerel, and snapper tend to school in the mid-water column. Keep an eye on the reef structure for sea snakes and mantis shrimp, and approach lionfish with care as their spines are venomous. Between May and November offers the most reliable window, with dwarf minke whale encounters possible during that period.
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Visibility can change quickly here, so check conditions with your operator before heading out and prioritise morning dives when the water tends to be clearest. If dwarf minke whales are your priority, plan your trip between June and August when sightings are more likely.
The site is located on the outer Great Barrier Reef and is visited by liveaboard dive boats, typically departing from Cairns or Port Douglas.
One source states "Disabled access available, contact operator for details."
Lionfish are present at the site. Divers may also encounter sea snakes and, during the winter months, dwarf minke whales.
Depth
3-25m
Visibility
7-30m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
22-29°C
Current
Moderate
Best Time
May, Jun, Jul, Aug, Sep, Oct, Nov
Yes, Lighthouse Bommie in Cairns and Port Douglas is a boat-access-only dive site. You will need to book with a local dive operator or charter a boat to reach it.
Lighthouse Bommie in Cairns and Port Douglas is best suited for divers with some experience. You should be comfortable with your buoyancy and have logged at least 10 to 20 dives.
Diving at Lighthouse Bommie in Cairns and Port Douglas requires the following certifications: Open Water. Always dive within your training limits.
A 3mm wetsuit is recommended for diving at Lighthouse Bommie in Cairns and Port Douglas. Water temperatures range from 22°C to 29°C.
Lighthouse Bommie in Cairns and Port Douglas is home to dwarf minke whales, reef sharks, turtles, barracuda, sea snakes, and lionfish. Marine life sightings vary by season and conditions.
The best months to visit Lighthouse Bommie in Cairns and Port Douglas are May, June, July, August, September, October, and November. Conditions outside these months can still be good but are less predictable.
Lighthouse Bommie in Cairns and Port Douglas has depths ranging from 3 metres to 25 metres.
Yes, Lighthouse Bommie in Cairns and Port Douglas is suitable for snorkelling. Shallow areas start from 3 metres, making it accessible for snorkellers.
Yes, night diving is available at Lighthouse Bommie in Cairns and Port Douglas. Night dives often reveal different marine life including nocturnal creatures. Always dive with proper lighting and a buddy.
Divers at Lighthouse Bommie in Cairns and Port Douglas should be aware of sharks. These encounters are generally rare and avoidable with proper awareness. Follow local safety guidance and maintain a respectful distance from all marine life.
Expect moderate currents at Lighthouse Bommie in Cairns and Port Douglas. Good buoyancy control and some drift diving experience is helpful.
Visibility at Lighthouse Bommie in Cairns and Port Douglas typically ranges from 7 metres to 30 metres. Conditions vary with weather, tides, and seasons.