
SS Yongala
Great Barrier Reef · Australia
A 110 m steel passenger steamer that vanished in a cyclone in March 1911 with all 122 on board, now lying intact on her starboard side on a sandy bottom in the open Coral Sea, roughly 22 km east of Cape Bowling Green and 90 km southeast of Townsville. The hull rises from 30 m sand to about 16 m at the highest stanchions, isolated from any reef, which concentrates pelagic life on the wreck like nowhere else on the Great Barrier Reef. Queensland groupers the size of small cars, schooling barracuda, eagle rays, mantas, olive sea snakes, bull sharks and a resident humphead wrasse all work the structure. Penetration is illegal — it is a protected gravesite.
Conditions
Depth
16 to 30 m
Open water and up
Current
Can be moderate
Can pick up on the edge
Visibility
15 to 30 m
Clearest in the calm season
Water
22 to 30°C
5 mm wetsuit, hood optional
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 28 | 28 | 27 | 26 | 24 | 22 | 22 | 22 | 23 | 25 | 26 | 27 |
| Vis (m) | 5 | 5 | 8 | 10 | 15 | 15 | 15 | 15 | 15 | 12 | 10 | 8 |
| Current | Strong | Strong | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Strong |
Your chances of seeing each animal
Queensland grouper
Last confirmed May 15, 2026 · 130 records
Almost always
Nearly every dive
Humphead wrasse
Last confirmed Jun 5, 2026 · 36 records
Very likely
Most dives
Olive sea snake
Last confirmed Jun 4, 2026 · 18 records
Very likely
Most dives
Giant trevally
Last confirmed Jun 4, 2026 · 11 records
Very likely
Most dives
Great barracuda
Last confirmed Jun 5, 2024 · 3 records
Likely
About 6 in 10 dives
Spotted eagle ray
Expected
Known here, not yet in recent logs
Bull shark
Expected
Known here, not yet in recent logs
Reef manta ray
Expected
Known here, not yet in recent logs
Gear