Cocklebiddy cave
Ningaloo Reef · Australia
Cocklebiddy Cave is a world renowned, extremely challenging technical cave diving site located in the remote Nullarbor Plain of Western Australia. Known for its extensive underwater passages and pristine geological formations, it attracts experienced technical divers seeking exploration in one of the longest underwater cave systems. The site offers a unique opportunity to witness untouched subterranean environments.
Conditions
Depth
20 to 120 m
Advanced depths
Current
Usually still
Can pick up on the edge
Visibility
20 to 30 m
Clearest in the calm season
Water
18 to 20°C
Dry suit or 7mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Vis (m) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Current | Still | Still | Still | Still | Still | Still | Still | Still | Still | Still | Still | Still |
Your chances of seeing each animal
Blind Cave Eel
Last confirmed May 15, 2026 · 8 records
Sometimes
About 1 in 3 dives
Gray Shrikethrush
Last confirmed Feb 2, 2025 · 3 records
Rare
Now and then
Mulga Parrot
Last confirmed Oct 2, 2025 · 1 records
Rare
Now and then
Basedowena oligopleura
Last confirmed Jun 23, 2026 · 1 records
Rare
Now and then
Dusky Woodswallow
Last confirmed Feb 2, 2025 · 1 records
Rare
Now and then
Yellow-Throated Miner
Last confirmed Oct 2, 2025 · 1 records
Rare
Now and then
Freshwater Shrimp
Expected
Known here, not yet in recent logs
Cave Gudgeon
Expected
Known here, not yet in recent logs
Gear