Meet the site
The Zanoni is one of the most complete sailing-ship wrecks in Australian waters and among the most important historic dives in South Australia. She was a 338-ton composite barque, 139 feet (42 m) long, built at Liverpool in 1865 by W.H. Potter & Co for Thomas Royden & Son and intended for the East India trade. On 11 February 1867, loaded with bark and 4,025 bags of wheat and bound for Port Adelaide, she was struck by a sudden, violent, short-lived squall while crossing Gulf St Vincent and capsized and sank within minutes. Remarkably, all sixteen people on board – the master, Captain Summers, 13 crew and two stevedores – were rescued. The wreck lay forgotten until it was located by divers in the early 1980s, and it was declared a historic shipwreck on 12 May 1983 with a 550 m radius Protected Zone. Because she sank quickly in open water onto a soft seabed rather than breaking up on a reef, the hull is remarkably intact. She lies on her side in about 18 m, and divers can trace her lines from the bowsprit to the stern, with masts, sternpost, rudder and parts of the superstructure still in place. Composite construction – iron frames with timber planking – makes the Zanoni a rare surviving example of a transitional shipbuilding technique. The surrounding seabed is barren sand and silt, so the wreck acts as an oasis. Sponges colonise the hull, and snapper, leatherjackets, old wives, yellowtail and bullseyes congregate around it, with blue swimmer crabs on the sand. Diving the Zanoni is a privilege rather than a routine outing. Every visit requires a permit, and to reduce pressure on the wreck an alternative site – the Ardrossan Barge – was scuttled nearby in 1984 for fishing and general diving. Divers visiting the Zanoni should be comfortable in open water at 18 m, have good buoyancy to avoid contact with fragile timbers, and treat the site as a museum.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Zanoni Wreck is recorded as Wreck in Yorke Peninsula. The listed access is boat (day trip). 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.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
- Lines and obstructions
- Discuss any known entanglement concerns and the suitability of the planned area.
- Overhead environments
- Ask whether the plan stays entirely in open water. A wreck or cave listing is not permission or training to enter.
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 Zanoni Wreck suitable for my certification?
The record lists Advanced Open Water. 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 Zanoni 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
Snapper, leatherjackets, old wives, yellowtail scad, bullseyes, sweep, blue swimmer crabs, sponges and encrusting invertebrates on the hull
Location
Composite three-masted barque lying on her side in 18 m on a barren seabed in the middle of Gulf St Vincent, about 10 nautical miles south-east of Ardrossan, inside a 550 m radius Protected Zone.
Facilities nearby
Boat ramps at Ardrossan and North Haven (Adelaide).
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.
Sources & further reading
environment.sa.gov.ausdfsa.netthediveshack.com.aumarinelife.org.auvisityorkepeninsula.com.auRecord updated 26 Sept 2026. Source claims are being reviewed.