Navy Pier
Exmouth · Australia
The Navy Pier at Harold E. Holt Naval Communication Station is consistently ranked among the best shore dives on Earth. The steel piling structure is so heavily encrusted with marine growth it barely resembles a man-made object. Wobbegong sharks pile on top of each other in the shaded corners. Giant Queensland groper cruise the deeper pilings. Lionfish, nudibranchs, moray eels, batfish, and schooling trevally share the same compressed space. Entry requires a permit through a licensed Exmouth dive operator.
Conditions
Depth
3 to 14 m
Good for beginners
Current
Usually still
Can pick up on the edge
Visibility
10 to 20 m
Clearest in the calm season
Water
23 to 30°C
5mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 28 | 28 | 27 | 26 | 25 | 24 | 23 | 23 | 24 | 25 | 26 | 27 |
| Vis (m) | 6 | 6 | 8 | 10 | 10 | 10 | 10 | 10 | 10 | 8 | 6 | 6 |
| Current | Gentle | Gentle | Gentle | Still | Still | Still | Still | Still | Gentle | Gentle | Gentle | Gentle |
Your chances of seeing each animal
Red Lionfish
Last confirmed Sep 23, 2025 · 5 records
Very likely
Most dives
Giant Moray Eel
Last confirmed Aug 14, 2025 · 2 records
Likely
About 6 in 10 dives
Schooling Trevally
Last confirmed Mar 4, 2026 · 1 records
Sometimes
About 1 in 3 dives
Spotted Wobbegong
Expected
Known here, not yet in recent logs
Giant Queensland Grouper
Expected
Known here, not yet in recent logs
Dusky Batfish
Expected
Known here, not yet in recent logs
Soft Coral Polyps
Expected
Known here, not yet in recent logs
Feather Duster Worm
Expected
Known here, not yet in recent logs
Gear