Dive slate · divesites.com.au · printed 8 Nov 2026
Long Bommie (Breaking Patches)
Cairns, Queensland · near Cairns
| Depth | 2–14 m |
|---|---|
| Minimum level | Open Water |
| Difficulty | Beginner |
| Access | Boat (day trip) |
| Entry | Giant stride or back-roll from the dive deck; descend the mooring line or reef slope |
| Current | Mild |
| Visibility | 10-18 m |
| Water | summer 27-30 °C, winter 23-25 °C |
| Suit | 3 mm full wetsuit or shorty in summer (27-30 °C); 3-5 mm full wetsuit in winter (23-25 °C); full-length lycra or stinger suit strongly advised November-May and supplied free by most operators |
| Best season | Year-round. June-November gives the most reliable visibility and no box-jellyfish season, though the south-east trades can blow 20-25 knots in winter; September-December usually has the calmest seas; December-April is the warm, wet stinger and cyclone season |
| Bottom time | 45 min |
| Position | -16.58010, 145.98110 (approximate) |
| Permit | Great Barrier Reef Marine Park – no individual permit needed on a commercial trip (operators hold GBRMPA permits and pay the Environmental Management Charge, usually included in the fare); check the GBRMPA Cairns zoning map for the reef's zone before any private visit |
| Nearest chamber | Townsville University Hospital Hyperbaric Medicine Unit (Townsville) – Cairns Hospital has no recompression chamber; divers are evacuated by RFDS/air ambulance |
| Emergency | 000 · DAN Asia-Pacific diving emergency 1800 088 200 |
Long Bommie (Breaking Patches)
Also known as Breaking Patches
A 200 m coral ridge split by a swim-through, with big hard corals on its western drop.
Near Cairns · Cairns, Queensland
- Depth
- 2–14 m
- Minimum level
- Open Water
- Access
- Boat (day trip)
- Boat ride
- ~80 min
- Water
- 27-30 °C
- Visibility
- 10-18 m
Long Bommie (Breaking Patches)2–14 m · Open Water
Dive factsDepths, conditions, location & safety
Season
In season nowBest months: January, February, March, April, June, July, August, September, October, November, December.
Year-round. June-November gives the most reliable visibility and no box-jellyfish season, though the south-east trades can blow 20-25 knots in winter; September-December usually has the calmest seas; December-April is the warm, wet stinger and cyclone season
- Best months
- Now (November)
- Stinger suit Nov–May
Dive facts
- Depth
- 2–14 m
- Typical depth
- 10 m
- Certification
- Open Water
- Difficulty
- Beginner
- Depth tier
- Open Water (10–18 m)
- Access
- Boat (day trip)
- Offshore
- 42 km
- Dive centre needed
- Yes – boat access only
- Shore / independent
- No
- Boat ride
- ~80 min
- Current
- Mild
- Visibility
- 10-18 m
- Water temp (summer)
- 27-30 °C
- Water temp (winter)
- 23-25 °C
- Water
- Tropical
- Bottom time
- 45 min
- Dive traffic
- Popular (weekly charters)
- Night dive
- No
- Snorkel friendly
- Yes
Exposure suit
3 mm full wetsuit or shorty in summer (27-30 °C); 3-5 mm full wetsuit in winter (23-25 °C); full-length lycra or stinger suit strongly advised November-May and supplied free by most operators
Location
Breaking Patches · Far North QLD – Cairns Outer Reef
-16.58010, 145.98110
Approximate position — not for navigation.
Open in Google MapsPrimary source: passions.com.auMarine park & permits
Great Barrier Reef Marine Park – no individual permit needed on a commercial trip (operators hold GBRMPA permits and pay the Environmental Management Charge, usually included in the fare); check the GBRMPA Cairns zoning map for the reef's zone before any private visit
Nearest recompression chamber
Townsville University Hospital Hyperbaric Medicine Unit (Townsville) – Cairns Hospital has no recompression chamber; divers are evacuated by RFDS/air ambulance
Diving emergency: call 000, then DAN AP 1800 088 200.
Trip planner
Build a trip around Long Bommie (Breaking Patches) →
A day-by-day plan for Cairns with this site locked in.
This guide is a planning aid. Conditions change daily — confirm with a local dive centre and dive within your training. Data & safety notes.
Dive profile
How this site rates
Scores are computed from the recorded data, not opinions. How?
At a glance
Long Bommie (Breaking Patches) is a pinnacle / bommie boat dive in Cairns, QLD, 2–14 m, suited to Open Water divers, about 80 minutes by boat.
Rated beginner: sheltered, shallow and manageable for a newly certified diver on a normal day.
Why dive here
- A 200 m coral ridge split by a swim-through, with big hard corals on its western drop.
- Snorkel-friendly, so non-diving companions can join at the surface.
Conditions to avoid
- Strong southerly or south-east swell and wind
- Strong northerlies
- Outgoing tide or run-off after rain (poor visibility)
- Cyclone season (roughly December–April)
- Stinger season without a full suit (November–May)
About Long Bommie (Breaking Patches)
Breaking Patches is a shallow patch reef just west of Michaelmas Cay, about 42 km north-east of Cairns, and Reef Trip describes it as a shallow coral garden in less than 14 m of water, ideal for snorkellers who like duck-diving. Several operators, including Reef Experience and Aqua Quest, use it, and Passions of Paradise has two sites here, one of which is Long Bommie. Passions describes Long Bommie as a long length of solid coral extending about 200 m, split in the middle, with a swim-through for divers and a unique western drop-off with large hard-coral formations.
The bommie is essentially a coral ridge, and following it from end to end makes a natural, easy-to-navigate dive, with the split in the middle providing a gap to swim through. The western side, where the reef drops off, has the biggest coral formations, massive boulder and plate colonies, and the most fish, including schools of fusiliers and other schooling species that Passions highlights. The shallow top suits snorkellers.
Because the site is exposed, Passions only uses it in calm weather, when visibility and conditions are at their best. Expect the typical mid-shelf mix of parrotfish, wrasse, damselfish, butterflyfish, coral trout and turtles, with reef sharks occasionally seen along the edge. The depth is modest, so bottom times are long, and it suits divers of all levels.
Paradise Reef, also on the Passions list for Breaking Patches, has its own entry. Visibility is typically 10-18 m, and calm days, when Passions can use the site, usually bring the clearest water.
Getting there & entry
Solid coral bommie about 200 m long, split in the middle, on Breaking Patches, a shallow patch reef just west of Michaelmas Cay about 42 km north-east of Cairns.
Boat access only. Cairns day boats leave from the Reef Fleet Terminal (1 Spence Street) and the neighbouring Marlin Marina on the city waterfront, with check-in between about 7:00 and 8:00 am; most operators run transfers from city and northern-beaches accommodation, and there is paid parking near the terminal. The run of about 42 km out through Trinity Inlet and across the lagoon to Breaking Patches takes around 80 minutes on a fast catamaran and noticeably longer on slower dive boats or into a south-easterly chop.
Long Bommie is a Passions of Paradise site used only in calm weather; Reef Experience and Aqua Quest also visit Breaking Patches. Enter from the stern steps.
Entry: Giant stride or back-roll from the dive deck; descend the mooring line or reef slope
Facilities: Departs Reef Fleet Terminal / Marlin Marina, Cairns: toilets, cafes, paid parking; dive gear, tanks and lunch supplied on board
Weather, swell & tides
The prevailing south-east trade winds (typically 15-25 knots from April to September) are what limit Cairns outer-reef diving: above about 25 knots trips may be cancelled, and exposed eastern moorings are used only in light winds. Summer northerlies are gentler but make north-facing moorings choppy. Box jellyfish and Irukandji are present from about November to May (stinger suits on every dive), and the cyclone season runs November to April, when a system in the Coral Sea can close the reef for days.
Visibility drops after heavy rain and strong winds; spring is usually calmest and clearest. Being closer to the coast, visibility is lower than on the outer reefs, especially after rain. Passions uses Long Bommie only in calm weather because it is exposed; the western drop-off is best in light winds.
Best season: Year-round. June-November gives the most reliable visibility and no box-jellyfish season, though the south-east trades can blow 20-25 knots in winter; September-December usually has the calmest seas; December-April is the warm, wet stinger and cyclone season
If it's blown out
Sheltered or shore sites within 25 km that often work when Long Bommie (Breaking Patches) doesn't.
- Michaelmas Cay · 3 km · Max 12 m
- Sandra's (Saxon Reef) · 13 km · Max 12 m
How the dive is usually run
Descend at one end of the bommie and follow it along its length at 8-12 m, passing through the split in the middle. Turn and return along the western side to see the drop-off and large hard-coral formations. Safety stop on the top of the bommie.
Marine life
- Schooling fish (fusiliers)
- parrotfish
- wrasse
- damselfish
- butterflyfish
- coral trout
- turtles →
- reef sharks →
- large boulder and plate corals
Linked species have their own page listing every site where they are recorded. All marine life →
Training required
Within the 18 m limit of an entry-level certification.
Courses that help here
- Peak Performance Buoyancy – Silt and low visibility punish poor trim.
Depth tiers: 0–10 m easy · to 18 m Open Water · 18–30 m Advanced (25 m+ is a deep dive) · 30–40 m Deep specialty · 40 m+ technical. All courses
Hazards & warnings
Marine stingers (box jellyfish, Irukandji) mainly November-May – wear a full stinger suit; mooring and tender traffic from other operators; tidal current on reef edges and in channels; surface chop in south-east trades – stay close to the boat and carry a surface marker; coral cuts and fire coral; do not touch or stand on coral; nearest recompression chamber is in Townsville (Cairns Hospital has none)
Dive centres that go here
Passions of Paradise – calm-weather day trips; Reef Experience and Aqua Quest – Breaking Patches day trips; Breaking Patches is also visited by Reef Experience and Aqua Quest; the mooring used on any day is chosen by the skipper according to wind, tide and other boats
Operators recorded for Long Bommie (Breaking Patches)
Passions of Paradise
ListedCairns · Cairns · QLD
A Cairns sailing catamaran day trip combining reef diving and snorkelling.
passions.com.au · (07) 4041 1600
Divers Den
ListedCairns · Cairns · QLD
A Cairns operation running both day-boat and liveaboard products alongside a training business and retail presence.
diversden.com.au · (07) 4046 7333
Reef Experience
Named by sitesCairns · Cairns · QLD
Day boat; same operator as Reef Encounter.
reefexperience.com.au · (07) 4037 2700
Other dive centres in Cairns
Mike Ball Dive Expeditions
ListedCairns · Cairns · QLD
A long-running expedition liveaboard operation associated with Ribbon Reefs and Coral Sea itineraries, including minke whale season trips.
mikeball.com · (07) 4053 0500
Spirit of Freedom
ListedCairns · Cairns · QLD
An expedition liveaboard associated with Ribbon Reefs, Osprey Reef and Coral Sea itineraries.
spiritoffreedom.com.au · (07) 4047 9150
Down Under Cruise & Dive
ListedCairns · Cairns · QLD
A Cairns day-boat operator offering reef diving, snorkelling and introductory diving.
downundercruiseanddive.com.au · (07) 4052 8300
Reef Encounter
ListedCairns · Cairns · QLD
A Cairns-based liveaboard vessel offering multi-day reef stays with day-boat transfers.
reefencounter.com.au · (07) 4037 2700
Pro Dive Cairns
ListedCairns · Cairns · QLD
A long-established Cairns operation best known for multi-day liveaboard certification trips that combine Open Water training with outer Great Barrier Reef diving.
prodivecairns.com · (07) 4031 5255
Ocean Free & Ocean Freedom
ListedCairns · Cairns · QLD
Small-vessel Cairns day trips, positioned around lower passenger numbers than the large reef catamarans.
oceanfree.com.au · (07) 4052 1111
Map
7 pinned sites. Pins marked approximate on their pages show the general area only; not for navigation.
Satellite views



Long Bommie (Breaking Patches): frequently asked questions
How deep is Long Bommie (Breaking Patches)?
Long Bommie (Breaking Patches) reaches a maximum depth of 14 m, with the shallowest part at about 2 m; most of the dive is spent around 10 m.
What certification do I need to dive Long Bommie (Breaking Patches)?
Open Water is the recommended minimum. Rated beginner: sheltered, shallow and manageable for a newly certified diver on a normal day.
Can I shore dive Long Bommie (Breaking Patches)?
No, it is reached by boat (about 80 minutes). A dive centre is required: boat access only.
When is the best time to dive Long Bommie (Breaking Patches)?
Year-round. June-November gives the most reliable visibility and no box-jellyfish season, though the south-east trades can blow 20-25 knots in winter; September-December usually has the calmest seas; December-April is the warm, wet stinger and cyclone season.
What marine life will I see at Long Bommie (Breaking Patches)?
Regularly recorded: Schooling fish (fusiliers), parrotfish, wrasse, damselfish, butterflyfish, coral trout, turtles, reef sharks, large boulder and plate corals.
What wetsuit do I need at Long Bommie (Breaking Patches)?
3 mm full wetsuit or shorty in summer (27-30 °C); 3-5 mm full wetsuit in winter (23-25 °C); full-length lycra or stinger suit strongly advised November-May and supplied free by most operators.
How cold is the water at Long Bommie (Breaking Patches)?
Typically 27-30 °C in summer and 23-25 °C in winter.
What are the main hazards at Long Bommie (Breaking Patches)?
Marine stingers (box jellyfish, Irukandji) mainly November-May – wear a full stinger suit; mooring and tender traffic from other operators; tidal current on reef edges and in channels; surface chop in south-east trades – stay close to the boat and carry a surface marker; coral cuts and fire coral; do not touch or stand on coral; nearest recompression chamber is in Townsville (Cairns Hospital has none). See the hazards section above for the full list.
Where is the nearest recompression chamber to Long Bommie (Breaking Patches)?
Townsville University Hospital Hyperbaric Medicine Unit (Townsville) – Cairns Hospital has no recompression chamber; divers are evacuated by RFDS/air ambulance. In an emergency call 000, then DAN Asia-Pacific on 1800 088 200.
Diving in Cairns
Cairns is the busiest dive hub in Australia. Day boats leave every morning for the outer reef sites 60–90 minutes offshore: Norman, Saxon, Hastings, Flynn, Milln, Thetford and Moore reefs, each with a handful of moored sites in 5–25 m, gentle coral gardens, turtles, reef sharks and, on the better sites, giant clams and Maori wrasse. Liveaboards leave from here for the Ribbon Reefs and the Coral Sea.
Getting there: Fly into Cairns. Every operator offers hotel pick-up; day trips depart the Reef Fleet Terminal around 7–8 am. Green and Fitzroy islands have shore snorkelling and some diving.
Sources
- passions.com.au/our-reef-locations
- reeftrip.com/reef-locations
- reefexperience.com.au/tour-information/reef-locations
- ilovecairns.com.au/aquaquest-dive-review
Data confidence: Medium · Being verified: New row; coordinates are for Breaking Patches generally. Last updated September 2026. Know this site better? How to send a correction
Nearby dive sites
More pinnacle/bommie dives in Queensland
Explore more
This region
Similar dives











