Mornington Peninsula · Victoria
HMAS Canberra
Victoria's signature artificial wreck — a former guided missile frigate at around 28 metres.
HMAS Canberra is an artificial reef and one of Victoria's signature wreck dives. The former guided missile frigate was scuttled off Ocean Grove in 2009 and has since developed substantial marine growth.
Visit Victoria places the wreck at approximately 28 metres. Access requires a licensed operator or use of the public mooring system.
Divers must hold an industry-recognised entry-level qualification and have experience appropriate for the dive. That final requirement is the important one, and it is frequently overlooked.
Max depth
30 m
typically 24 m
Access
boat
Current
variable
tide sensitive
Water temp
11–19°C
Level
technical
| Region | Mornington Peninsula |
|---|---|
| State | Victoria |
| Access | boat |
| Site type | wreck |
| Minimum depth | 14 m |
| Typical depth | 24 m |
| Maximum depth | 30 m |
| Current | variable |
| Tide sensitive | Yes |
| Visibility | Commonly 5–20 m |
| Water temperature | Roughly 11–19°C |
| Experience level | advanced, technical |
These are guidance categories, not guarantees. Conditions on the day, and an operator’s own requirements, override any classification here.
- temperate reef fish
- sponges and soft corals colonising the structure
- schooling baitfish
- seals occasionally in the area
Official information requires an industry-recognised entry-level qualification equivalent to AS4005.1 together with appropriate experience for the intended dive.
A certification card identifies training completed. It does not prove that someone has recent experience in the conditions this dive actually involves.
- cold water and the task loading that comes with it
- diving at 28 metres and the gas planning it requires
- low visibility
- wreck orientation around a large structure
- current
Swimming around a wreck and penetrating enclosed spaces are not the same activity. The Canberra was prepared with access points, but prepared does not mean unrestricted.
Any overhead route should be evaluated according to training, environment and operator procedures. A general wreck dive should not be confused with technical wreck penetration.
The wreck is intact, large and increasingly colonised. At 138 metres long it cannot be covered in one dive, which is part of the appeal — divers return repeatedly and see different sections.
For Victorian divers it is also the most accessible introduction to serious wreck diving without needing technical qualifications.
Access
- Boat access via licensed operator or the public mooring system.
- Located off Ocean Grove in Bass Strait, outside Port Phillip Heads.
- Exposed to swell; trips are weather-dependent.
Hazards
- depth combined with cold water
- reduced visibility on many days
- current across the wreck
- disorientation around a large structure
- overhead if penetration is attempted
Operators servicing this site
Businesses documented as regularly diving this site. Only operators we have established a connection for are listed.
Training that is genuinely useful here
Not a list of everything available — the qualifications that actually change what you can do at this site.
Technical background
Related dive sites
Worth reading alongside this one.
Dive sites nearby
Other documented sites within range, nearest first — useful for building a trip rather than a single dive.
Other dive businesses in the area
Not documented as servicing this site, but close enough to be useful for fills, hire or advice.
Frequently asked questions
How deep is HMAS Canberra?
Depths range from around 14 metres to roughly 30 metres, with a typical profile around 24 metres. Conditions and route selection change this considerably.
Is HMAS Canberra suitable for beginners?
It is better approached with experience beyond entry level. Depth, current or exposure make this demanding regardless of what a certification card permits. Discuss your recent diving honestly with the operator rather than relying on certification alone.
How do you get to HMAS Canberra?
Access is boat based. Boat access via licensed operator or the public mooring system.
Is there current at HMAS Canberra?
Current is recorded as variable. The site is tide sensitive, so timing matters and local knowledge is worth paying for. Conditions vary daily and should be checked close to the day.
What will I see at HMAS Canberra?
Commonly reported marine life includes temperate reef fish, sponges and soft corals colonising the structure, schooling baitfish, seals occasionally in the area. Sightings are never guaranteed.
When is the best time to dive HMAS Canberra?
Conditions vary through the year. Visibility is commonly 5–20 m. Check with local operators close to your dates.
Where is HMAS Canberra?
HMAS Canberra is in the Mornington Peninsula region of Victoria.
Last researched: September 2026. Dive businesses change frequently — confirm current services, prices and requirements directly with the operator before booking.