Meet the site
The Shannon II is one of the newer wrecks off 1770. Marinelife.org.au records that the 18.6 m fibreglass trawler capsized in 2004 after hooking an obstruction, floated upside down for about a week and eventually sank about 4 nm from the Barcoola wreck. Dave Harasti also lists her among the 'fish magnet' wrecks of the region.
Very little has been published about the dive itself. Marinelife.org.au notes only that she is attracting fish, and neither her depth nor her exact position is given. Given her proximity to the Barcoola, she is likely to lie in similar open, sandy ground, and in rich water like this any structure quickly gathers baitfish, cod and pelagics. As a fibreglass hull she will not corrode like the steel wrecks nearby, but she offers less relief and fewer internal spaces.
The Shannon II is included in this database because it is named in the regional dive references, not because it is an established dive. Anyone wanting to visit it would need local knowledge of the mark, a capable boat and a calm window, and would most likely combine it with the Barcoola on the same trip. Until more is known, plan it as a deep, exploratory dive for experienced divers with full boat support.
For visitors to 1770 without their own boat, the realistic diving options are the reef trips to Lady Musgrave Island and Fitzroy Reef, or technical wreck charters by arrangement with the local dive centre. Whatever the plan, carry emergency oxygen and a first-aid and evacuation plan: the 1770 offshore wrecks are 40 km or more from port and several hours from the nearest recompression chamber in Brisbane.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Shannon II Wreck is recorded as Wreck in Bundaberg & Agnes Water. 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.
- Current and timing
- Ask how the operator assesses the current window for the actual route. Historical tide notes are not a departure instruction.
- Planned depth
- Confirm the intended route and training requirements; the recorded maximum is not a target.
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 Shannon II Wreck suitable for my certification?
The record lists Deep/Advanced + experience. 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 Shannon II 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
Fish aggregating (species not documented); likely baitfish, cod and pelagics as on nearby wrecks
Location
18.6 m fibreglass trawler that capsized in 2004 and lies about 4 nm from the Barcoola wreck offshore from 1770.
Facilities nearby
Departure: Seventeen Seventy boat ramp
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
marinelife.org.audaveharasti.comRecord updated 26 Sept 2026. Source claims are being reviewed.