

The Coolooli is a technical wreck dive sitting in 45 to 50 metres off New South Wales, combining a wreck penetration environment with wall diving in a single site. Visibility swings widely between 5 and 40 metres, so conditions vary significantly dive to dive. Current runs mild, but the depth demands mandatory decompression planning and puts you firmly in nitrogen narcosis territory. The overhead environment adds another layer of task loading, and this is not a site to wing without proper technical training and redundant gas. Reef species populate the structure. February offers the best conditions.
-33.71813, 151.34920
Plan your deco stops and bottom time before you enter the water, not on the anchor line. Given the visibility range, call the dive operator ahead of your trip to get a current conditions read before committing your gas plan.
Access info coming soon
This is a technical dive for experienced divers only. Due to the significant depth and overhead wreck environment, plan your gas and decompression stops carefully. Be aware of entanglement risks within the wreck and the potential for nitrogen narcosis.
Depth
44-48m
Visibility
5-40m
Skill Level
Technical
Entry
Boat
Boat required
Water Temp
25-29°C
Current
Mild
Typical Dive
30 min
Best Time
Feb
The Coolooli in New South Wales requires technical diving certification and experience. Located off Sydney, this wreck sits at 45 to 50 metres depth, making it a decompression dive that demands advanced training beyond recreational limits. The overhead environment and deep depth mean only technical divers with appropriate qualifications should attempt this site.
The Coolooli wreck lies between 45 and 50 metres depth off the coast of Sydney, New South Wales. This depth range places the site firmly in technical diving territory, requiring decompression stops and specialised training. Divers will experience significant nitrogen narcosis risk at this depth.
The Coolooli presents multiple technical diving hazards including an overhead environment within the wreck structure, deep depths of 45 to 50 metres, mandatory decompression stops, and significant nitrogen narcosis risk. These hazards require proper technical training, redundant equipment systems, and careful dive planning. Only experienced technical divers should attempt this Sydney wreck dive.
The Coolooli is accessed by boat from Sydney, New South Wales. Given the 45 to 50 metre depth and technical requirements, divers must arrange transport with charter operators experienced in technical wreck diving. The site requires careful planning for decompression obligations and changing offshore conditions.
February is the best month to dive The Coolooli wreck off Sydney. This timing typically offers the most favourable conditions for technical diving at this exposed offshore site. Divers should monitor weather forecasts closely as conditions can change rapidly in this area of New South Wales.
Diving at The Coolooli in Sydney requires the following certifications: Technical, Deep, Trimix. Always dive within your training limits.
A 3mm wetsuit is recommended for diving at The Coolooli in Sydney. Water temperatures range from 25°C to 29°C.
The Coolooli in Sydney has depths ranging from 44 metres to 48 metres.
A typical dive at The Coolooli in Sydney lasts approximately 30 minutes. Actual dive time depends on depth, air consumption, and conditions.
Yes, night diving is available at The Coolooli in Sydney. Night dives often reveal different marine life including nocturnal creatures. Always dive with proper lighting and a buddy.