Townsville, Ayr & the SS Yongala · Queensland
SS Yongala
A 100-metre passenger steamer lost in 1911, now carrying possibly the densest marine life in Australia.
The SS Yongala is one of Queensland's most important individual dive attractions and is regularly described as among the best wreck dives in the world.
The wreck is around 100 metres long and lies at depths reaching roughly 30 metres. Queensland tourism material treats the site as an advanced diving attraction.
Marine life around the wreck can be exceptionally dense because the wreck provides substantial structure away from major surrounding reef systems. It sits on an otherwise featureless seabed, which concentrates every structure-dependent species in the area onto it.
The ship was lost in a cyclone in 1911 with all 122 people aboard. It is a protected historic site and a gravesite, and penetration is not permitted.
Max depth
30 m
typically 25 m
Access
boat
Current
significant
Water temp
22–29°C
Level
advanced
| Region | Townsville, Ayr & the SS Yongala |
|---|---|
| State | Queensland |
| Access | boat |
| Site type | wreck |
| Minimum depth | 16 m |
| Typical depth | 25 m |
| Maximum depth | 30 m |
| Current | significant |
| Visibility | Commonly 10–25 m |
| Water temperature | Roughly 22–29°C |
| Experience level | advanced |
These are guidance categories, not guarantees. Conditions on the day, and an operator’s own requirements, override any classification here.
- Queensland groupers, often very large
- rays including eagle rays and bull rays
- turtles
- sea snakes
- dense schooling fish including trevally and barracuda
- pelagic species
- bull sharks occasionally
Possessing an entry-level certification does not automatically make every diver equally prepared. Operators may impose additional experience or supervision requirements, and those requirements exist for good reasons.
- recent depth experience
- comfort managing current
- ascent control without a reference
- gas consumption at 25–30 metres
- boat diving experience
- comfort with no nearby reef rising toward the surface
The Yongala is protected under historic shipwreck legislation. Penetration is not permitted, nothing may be removed, and divers are asked to avoid contact with the structure.
None of this limits the dive meaningfully. The marine life is on the outside.
The wreck is an isolated structure on a sand plain roughly 20 kilometres offshore. Every species that needs structure — for shelter, for hunting, for cleaning — concentrates here.
The result is a density of large animals that reef diving rarely produces, in a comparatively small area.
Access
- Boat access from Ayr (shorter transit) or Townsville.
- Exposed offshore location — trips are weather-dependent.
- Descent is typically down a mooring line against current.
Hazards
- current, which is frequently significant
- depth with limited no-decompression time
- no shallow reef to ascend onto
- blue-water ascents without a fixed reference if the line is missed
- marine life encounters requiring calm behaviour
What you might see here
Species documented at this site, with seasonality and etiquette on each page.
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.
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 SS Yongala?
Depths range from around 16 metres to roughly 30 metres, with a typical profile around 25 metres. Conditions and route selection change this considerably.
Is SS Yongala 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 SS Yongala?
Access is boat based. Boat access from Ayr (shorter transit) or Townsville.
Is there current at SS Yongala?
Current is recorded as significant. Conditions vary daily and should be checked close to the day.
What will I see at SS Yongala?
Commonly reported marine life includes Queensland groupers, often very large, rays including eagle rays and bull rays, turtles, sea snakes, dense schooling fish including trevally and barracuda, pelagic species. Sightings are never guaranteed.
When is the best time to dive SS Yongala?
Conditions vary through the year. Visibility is commonly 10–25 m. Check with local operators close to your dates.
Where is SS Yongala?
SS Yongala is in the Townsville, Ayr & the SS Yongala region of Queensland.
Last researched: September 2026. Dive businesses change frequently — confirm current services, prices and requirements directly with the operator before booking.