Dive slate · divesites.com.au · printed 7 Nov 2026
Scuba Zoo (Boomerang Reef)
Coral Sea, External Territories · near Townsville (liveaboard)
| Depth | 10–18 m |
|---|---|
| Minimum level | Open Water |
| Difficulty | Beginner |
| Access | Boat (multi-day/liveaboard) |
| Entry | Giant stride from liveaboard dive deck; descend mooring or line |
| Current | Mild |
| Visibility | 25-40 m |
| Water | summer 28-29 °C, winter 23-25 °C |
| Suit | 3 mm full wetsuit or lycra Nov–Apr (27–29°C); 5 mm full wetsuit Jun–Sep (23–25°C); full-length lycra or stinger suit recommended Nov–May |
| Best season | Year-round when weather allows; Sep–Dec usually calmest and clearest (visibility can exceed 40 m); Jun–Aug stronger SE trades make the open-ocean crossing rough; Dec–Apr cyclone season |
| Bottom time | 40 min |
| Position | not published |
| Permit | Coral Sea Marine Park (Parks Australia). Scuba/snorkel tourism in all zones requires Parks Australia authorisation (held by the operator); recreational fishing is prohibited in National Park Zones. Flinders Reefs are zoned Habitat Protection Zone (Reefs) (IUCN IV) under the Coral Sea Marine Park Management Plan 2018; recreational fishing is allowed. |
| Nearest chamber | Townsville University Hospital hyperbaric unit (Townsville) – aeromedical evacuation only after the vessel steams back toward the coast; several hours to more than a day away; liveaboards carry oxygen and satellite communications |
| Emergency | 000 · DAN Asia-Pacific diving emergency 1800 088 200 |
Scuba Zoo (Boomerang Reef)
Also known as Scuba Zoo
A historic caged shark-feed site with four permanent cages on sand at 15 m.
Near Townsville (liveaboard) · Coral Sea, External Territories
- Depth
- 10–18 m
- Minimum level
- Open Water
- Access
- Boat (multi-day/liveaboard)
- Boat ride
- —
- Water
- 28-29 °C
- Visibility
- 25-40 m
Scuba Zoo (Boomerang Reef)10–18 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 when weather allows; Sep–Dec usually calmest and clearest (visibility can exceed 40 m); Jun–Aug stronger SE trades make the open-ocean crossing rough; Dec–Apr cyclone season
- Best months
- Now (November)
- Stinger suit Nov–May
Dive facts
- Depth
- 10–18 m
- Typical depth
- 15 m
- Certification
- Open Water
- Difficulty
- Beginner
- Depth tier
- Open Water (10–18 m)
- Access
- Boat (multi-day/liveaboard)
- Offshore
- 250 km
- Dive centre needed
- Yes – boat access only
- Shore / independent
- No
- Current
- Mild
- Visibility
- 25-40 m
- Water temp (summer)
- 28-29 °C
- Water temp (winter)
- 23-25 °C
- Water
- Tropical
- Bottom time
- 40 min
- Dive traffic
- Rarely dived (private boat/club only)
- Night dive
- No
- Snorkel friendly
- No
Exposure suit
3 mm full wetsuit or lycra Nov–Apr (27–29°C); 5 mm full wetsuit Jun–Sep (23–25°C); full-length lycra or stinger suit recommended Nov–May
Location
Boomerang Reef (Flinders Reefs group) · Coral Sea – Flinders Reefs
No published coordinates. The map above shows the general area, estimated from other documented sites near Townsville.
Dive site map (external) →Primary source: marinelife.org.auMarine park & permits
Coral Sea Marine Park (Parks Australia). Scuba/snorkel tourism in all zones requires Parks Australia authorisation (held by the operator); recreational fishing is prohibited in National Park Zones. Flinders Reefs are zoned Habitat Protection Zone (Reefs) (IUCN IV) under the Coral Sea Marine Park Management Plan 2018; recreational fishing is allowed.
Nearest recompression chamber
Townsville University Hospital hyperbaric unit (Townsville) – aeromedical evacuation only after the vessel steams back toward the coast; several hours to more than a day away; liveaboards carry oxygen and satellite communications
Diving emergency: call 000, then DAN AP 1800 088 200.
Trip planner
Build a trip around Scuba Zoo (Boomerang Reef) →
A day-by-day plan for Coral Sea 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
Scuba Zoo (Boomerang Reef) is a reef liveaboard-only site in Coral Sea, Australia's external territories, 10–18 m, suited to Open Water divers.
Rated beginner: sheltered, shallow and manageable for a newly certified diver on a normal day.
Why dive here
- A historic caged shark-feed site with four permanent cages on sand at 15 m.
- Rarely dived: expect to have the site to yourself, and plan your own logistics.
- Visibility often reaches 25-40 m.
Conditions to avoid
- Afternoon north-easterlies
- Cyclone season (roughly December–April)
About Scuba Zoo (Boomerang Reef)
Scuba Zoo is a piece of Coral Sea diving history. Marinelife.org.au describes it as a shark-feeding site at about 15 m on Boomerang Reef, near the Flinders Reefs, with four permanent cages on a sandy bottom and up to 30 or more sharks attending. During the 1980s and 1990s, Townsville-based liveaboards ran caged shark feeds here, with divers watching from inside the cages as reef sharks competed for bait.
The arrangement set it apart from the open-water feeds at Osprey's North Horn. The cages sat on sand, the bait was presented nearby, and the sharks, mainly grey reef and whitetip reef sharks and probably silvertips, were free to circle and feed around them. With 30 or more sharks at a time, it was one of the most intense shark encounters available in Australia.
Shark feeding in the Coral Sea Marine Park now requires specific Parks Australia authorisation.
Without a feed, the site is a shallow sand-and-reef dive at 15 m, with the usual Coral Sea reef fish, whitetips on the sand, and the remains of the cages as an unusual feature. Visibility in the area is often 30–40 m.
The entry is kept because the site is well known historically. Divers wanting a Coral Sea shark feed today should look to North Horn on Osprey Reef; anyone planning an expedition to Flinders should ask the operator whether Scuba Zoo is still dived.
Getting there & entry
A sandy-bottomed site at about 15 m near the Flinders Reefs where four permanent shark-observation cages were installed; historically up to 30 or more sharks attended feeds.
Liveaboard only, from Townsville. Mike Ball's Spoilsport visits Flinders on its 7-night Yongala & Coral Sea expedition (depart Breakwater Marina, Townsville, Thursday evening, finish in Cairns) and the 10-night Coral Sea Odyssey; the overnight crossing is about 140 nautical miles (260 km), passing Myrmidon Reef on the outer Great Barrier Reef. Private expedition yachts anchor behind the main sand cay in about 30 m over sand.
Scuba Zoo was historically visited by Townsville-based Coral Sea charters for caged shark feeds; whether the cages remain and feeds continue is unconfirmed.
Entry: Giant stride from liveaboard dive deck; descend mooring or line
Weather, swell & tides
The Flinders Reefs lie about 250 km off the Queensland coast, roughly 140 nautical miles north-east of Townsville, beyond the outer Great Barrier Reef. The crossing is made overnight through open ocean and is uncomfortable in SE trades over about 20 knots (common June–August). The main sand cay gives some shelter from the trades, and the lagoon pinnacles are more protected than the outer walls.
Currents can be strong through the reef gaps and over the mid-reef bommies. September–December usually gives the calmest seas and 40 m-plus visibility; December–April is cyclone season.
Best season: Year-round when weather allows; Sep–Dec usually calmest and clearest (visibility can exceed 40 m); Jun–Aug stronger SE trades make the open-ocean crossing rough; Dec–Apr cyclone season
How the dive is usually run
If a feed is conducted, descend to the sand at 15 m, enter the observation cage as directed and remain inside until the guides signal the end of the feed. Otherwise explore the sand and nearby reef.
Marine life
- Grey reef and whitetip reef sharks (up to 30+ historically at feeds) →
- possibly silvertips →
- reef fish
- garden eels
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.
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
If feeding occurs, stay inside the cage and follow guides; old cage structures may be corroded – do not enter unless directed; remote – many hours from medical help.
Dive centres that go here
Historically Townsville-based Coral Sea charters; no current operator confirmed.
Operators recorded for Scuba Zoo (Boomerang Reef)
Other dive centres in Coral Sea
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
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
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
General area
No position has been published for Scuba Zoo (Boomerang Reef). The circle shows where it is likely to be, worked out from other documented sites near Townsville. Ask a local operator for the exact site.
Dashed circle: general area (about 60 km), from other documented sites near Townsville. 6 pinned sites. Pins marked approximate on their pages show the general area only; not for navigation.
Scuba Zoo (Boomerang Reef): frequently asked questions
How deep is Scuba Zoo (Boomerang Reef)?
Scuba Zoo (Boomerang Reef) reaches a maximum depth of 18 m, with the shallowest part at about 10 m; most of the dive is spent around 15 m.
What certification do I need to dive Scuba Zoo (Boomerang Reef)?
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 Scuba Zoo (Boomerang Reef)?
No, it is reached by boat. A dive centre is required: boat access only.
When is the best time to dive Scuba Zoo (Boomerang Reef)?
Year-round when weather allows; Sep–Dec usually calmest and clearest (visibility can exceed 40 m); Jun–Aug stronger SE trades make the open-ocean crossing rough; Dec–Apr cyclone season.
What marine life will I see at Scuba Zoo (Boomerang Reef)?
Regularly recorded: Grey reef and whitetip reef sharks (up to 30+ historically at feeds), possibly silvertips, reef fish, garden eels.
What wetsuit do I need at Scuba Zoo (Boomerang Reef)?
3 mm full wetsuit or lycra Nov–Apr (27–29°C); 5 mm full wetsuit Jun–Sep (23–25°C); full-length lycra or stinger suit recommended Nov–May.
How cold is the water at Scuba Zoo (Boomerang Reef)?
Typically 28-29 °C in summer and 23-25 °C in winter.
What are the main hazards at Scuba Zoo (Boomerang Reef)?
If feeding occurs, stay inside the cage and follow guides; old cage structures may be corroded – do not enter unless directed; remote – many hours from medical help. See the hazards section above for the full list.
Where is the nearest recompression chamber to Scuba Zoo (Boomerang Reef)?
Townsville University Hospital hyperbaric unit (Townsville) – aeromedical evacuation only after the vessel steams back toward the coast; several hours to more than a day away; liveaboards carry oxygen and satellite communications. In an emergency call 000, then DAN Asia-Pacific on 1800 088 200.
Diving in Coral Sea
Beyond the outer Great Barrier Reef the continental shelf drops away and a scatter of isolated oceanic reefs rises from 1,000 m or more of water. Osprey, Bougainville, Holmes, Flinders and Lihou reefs have vertical walls, 40 m-plus visibility, and shark populations that were never fished down. North Horn at Osprey is the best-known shark dive in Australia; the southern reefs are visited by a handful of boats a year.
Getting there: Liveaboard only, 4–7 nights from Cairns or Port Douglas for Osprey and the northern reefs; expedition trips from Cairns or Townsville for Flinders and Lihou. Overnight crossings of open sea are part of the deal.
Sources
- marinelife.org.au/?page_id=1642
- australianmarineparks.gov.au/static/bf80dcf4e0b38b6d3e44ce81da9f4f40/amp-document-fnl-mp-2018-cs-map-flinders-reefs.pdf
Data confidence: Low · Being verified: Current status of cages and feeds unknown; coordinates unknown; Boomerang Reef identity unconfirmed.. Last updated September 2026. Know this site better? How to send a correction
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