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New South Wales · Wreck

SS Birchgrove Park wreck

The most intact wreck off Sydney – a 1930 collier lost in a 1956 southerly buster, with enterable bridge and forecastle in 51 m.

Sydney Northern BeachesBoat
YouDive mascot illustration; not a photograph or site map

Mascot illustration — not a photograph or site map.

Depth
47–51 m
Certification
Technical (decompression)
Access
Boat
Dive type
Wreck
Region
Sydney Northern Beaches

Depth describes the recorded site range, not a recommended dive depth. Certification is a recorded recommendation; suitability depends on your planned route, training, experience and current conditions.

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Location & map

Recorded location

Interactive map provided by Google Maps. If the map does not load, use the larger-map link.

Meet the site

The Birchgrove Park is Sydney's most intact deep shipwreck and one of its most poignant. Built by J. Lewis and Sons at Aberdeen and launched in November 1930, she was a 47 m, 640-ton steel collier for R. W. Miller and Co, designed for the Newcastle-to-Sydney coal run. Requisitioned in 1941 as HMAS Birchgrove Park, she served the Navy as an auxiliary minesweeper and stores carrier in New Guinea before returning to Miller's in 1946. At 2.45 am on 2 August 1956, running south from Newcastle with a full cargo, she was caught by a southerly buster; water entered through corroded pipes and loose hatch tarpaulins, she listed heavily and capsized. Ten of the crew died, two never found, and the subsequent inquiry became a landmark in Australian maritime safety. The wreck was located in 1965 by Wally Gibbins and Ken Bateman. She lies on her port side facing west in 51 m, standing about 4 m above the sand. Although the hull has broken around the boiler section and the bow has separated, the ship is still recognisably a ship: the bridge lies detached but enterable on two levels, the forecastle can be entered with several ways out, the mast and a crane arm lie across the sand, and the boiler, engine, propeller and rudder are all in place. Conger and moray eels live in the boiler tubes and wobbegongs are sometimes found in the firebox. Large schools of fish gather over the hull, and the debris field runs west into the sand. Current is generally slight this far off the coast, and visibility is often good, though Hawkesbury River floods can turn the water brown for days. It is strictly a dive for experienced, well-equipped decompression divers: 51 m is deep for air, the site is remote, and the wreck's compartments are silty. For those qualified it is the finest example of an intact collier in the Sydney area and a war grave-like memorial to the last major coastal collier loss on this coast.

Research this site before booking

SS Birchgrove Park wreck is recorded as Wreck in Sydney Northern Beaches. The listed access is boat. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.

Topics flagged by the stored research

These are questions prompted by the existing notes, not a verified or complete hazard assessment.

Lines and obstructions
Discuss any known entanglement concerns and the suitability of the planned area.

Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.

Questions, answered

Is SS Birchgrove Park wreck suitable for my certification?

The record lists Technical (decompression). That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.

Can I book SS Birchgrove Park wreck through YouDive?

YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.

What you might see

Schools of nannygai, bullseyes and yellowtail, jewfish, kingfish, conger and moray eels in the boiler, wobbegongs, Port Jackson sharks, whaler sharks on ascent

Location

Collier lost with ten lives in a southerly buster on 2 August 1956, about 8 km south-east of Barrenjoey Headland off Bangalley Head/Whale Beach; lies on its port side in 51 m.

Before you make plans

Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.

Record updated 26 Sept 2026. Source claims are being reviewed.

More records in this region

Grouped by directory region, not distance or equivalent difficulty.

Operators linked to this site

These links are recorded in the directory. Confirm current trips and site access directly.