Meet the site
The SS Irresistible was one of the steam tugs that served Newcastle's busy coal port. Grey Nurse Charters records that she was built in London in 1883, worked for J & W Brown, the Newcastle towage company, and was scuttled on 27 August 1931 - one of several old tugs disposed of off Newcastle that year, along with the Commodore and the Osprey. She now lies in about 26 m in Stockton Bight, past North Reef; the nearby reef called The Limestones is described as being near the Irresistible wreck. The wreck sits upright on sand. Grey Nurse Charters describes a large boiler separated by sand from the engine and propeller shaft, and a forward section - so the hull has partly collapsed and the machinery is the main structure. For a tug, the boiler is big and dominates the site, and the engine and shaft make a clear line toward the stern. As an isolated structure on sand, the Irresistible attracts wobbegongs and reef fish; yellowtail, bullseyes, leatherjackets and morwong are typical, and encrusting growth covers the metal. Because Newcastle visibility varies with the Hunter outflow, the best days follow dry weather and coincide with high tide. At 26 m the dive suits Advanced divers, and the compact layout means the whole wreck can be seen in one dive. It is a good introduction to the Newcastle tug wrecks, which progress from the Irresistible to the deeper Commodore (36 m) and Osprey (42 m), and it pairs with The Limestones reef nearby.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
SS Irresistible wreck is recorded as Wreck in Newcastle & Lake Macquarie. 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.
- 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.
- 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 SS Irresistible 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 SS Irresistible 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
Wobbegong sharks, yellowtail, bullseyes, leatherjackets, morwong, encrusting invertebrates
Location
An 1883 London-built tug scuttled in 1931, sitting upright on sand in about 26 m in Stockton Bight, past North Reef, near The Limestones.
Facilities nearby
Departs Newcastle Harbour ramps: parking, toilets.
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
greynurse.com.augreynurse.com.augreynurse.com.auRecord updated 26 Sept 2026. Source claims are being reviewed.