Diving at Bulk Jetty (Australia)
Near Rockingham, Bulk Jetty is an abandoned 250 m jetty you can no longer walk on but can still dive, dropping to about 8 m / 26 ft over a grey silt floor scattered with razor clams. Sheltered behind Garden Island and rated beginner, it's a quiet, structure-led shore dive, as long as you keep your fins off that easily-clouded silt.
As evening covers Bulk Jetty, the local air temperature is measured at 12.5°C. The current wave height at the surface is recorded at 2 m. These late-day readings characterize the surface conditions for the night.
Dive Site Location & Key Facts
Dive Site Overview
An old jetty, closed off and out of use, still stands underwater here, its pylons marching out over a floor of soft grey silt. You can't get up top anymore, but the structure below is the dive, running to about 8 m / 26 ft with an average around 6 m / 20 ft.
The pylons are what you follow, gathering life along their lengths, while the silt floor between them is studded with razor clams. That silt is the defining feature: it lifts at the lightest touch and turns clear water into soup, so this is a dive that rewards still, careful finning and a flat trim. Sheltered behind Garden Island, the site stays calmer than its open neighbours, and parking sits nearby. Glide the pylon lines, keep off the bottom, and the old jetty reveals itself piece by piece. At 250 m the old jetty gives you a long line of pylons to follow, so you can turn the dive at the halfway point and work back without ever losing your way. Keep that grey silt undisturbed and the visibility holds for everyone behind you.
Conditions are Excellent
07:00 - 14:00
Optimal conditions expected
Current conditions near Bulk Jetty show 12° air, 17° sea temperature, N/A waves, and 13 km/h wind. Forecast data is refreshed regularly to ensure accuracy.
Best Time to Dive
Late summer into autumn, around February through April, brings the best scores. Water runs cool to mild, peaking near 24°C / 75°F and dropping to about 17°C / 62°F in winter, so plan a proper wetsuit outside the warmest months. Garden Island does a lot of the work, sheltering the site so wave height stays modest, in a 1.4–2.4 m / 5–8 ft band that eases over summer. Wind matters less here than the silt does: even a calm day can mean poor visibility if the bottom has been stirred, so the real win is going when it's flat and diving with the control to keep it that way. Whatever the season, the silt decides your visibility more than the swell does, so dive it with control.
PEAK SEASON SCORE
Scores combine air & water temps, waves, wind & rainfall for overall conditions.
BEST MONTHS TO DIVE
Monthly records compiled from satellite and marine observation nodes over the last 3 years. Data provided by Open-Meteo and MET Norway.
Dive Experience & Conditions
This is a slow, structure-hugging dive. You work the pylons out and back at about 8 m / 26 ft, and the whole experience hinges on one skill: staying off the silt. Kick down into that grey floor and the visibility is gone for you and anyone behind you, so flat trim and gentle finning aren't optional, they're the dive. The razor clams in the silt are sharp, another reason to keep hands and knees up and away from the bottom. Sheltered water keeps conditions steady, and the abandoned structure gives you a clear route to follow. Treat it as a buoyancy exercise with a payoff, and it's a genuinely rewarding shore dive. A turnaround at the far pylons gives the dive a natural shape, out along one side and back along the other.
Dive Difficulty & Safety Guidelines
The depth is shallow and the site is sheltered, so the difficulty here isn't about conditions, it's about control. Silt-out is the real risk: the grey floor clouds instantly, and poor buoyancy can leave you and your buddy in near-zero visibility fast.
Keep a flat trim, fin gently, and stay off the bottom. The razor clams add a sharp-edged reason not to put hands down on the silt. Garden Island's shelter keeps swell down, so on a calm day with good buoyancy this is an easy, low-stress dive. Newer divers can handle it well, as long as they respect the silt and don't treat the bottom as somewhere to rest.
Recommended Equipment
- Dive Computer
- Hard-soled Dive Boots
This gear list is based on verified equipment signals for Bulk Jetty, Australia. Always confirm final gear choices with your dive operator, guide, or liveaboard.
Recommended Dive Suit
5-7mm wetsuit is often considered an appropriate level of exposure protection for conditions like these. A thermal robe or jacket is recommended between dives.
Divers entering the water at Bulk Jetty today can expect temperatures near 17°C (63°F) beneath the surface. Surface air temperatures are resting at 12°C (54°F).
Environmental models indicate a modest warming trend ahead. A warming trend is expected over the next few days.
Emergency & Medical Support
Essential information to help you plan your dive trip to Bulk Jetty.
Hyperbaric chambers are a critical part of dive safety infrastructure. Availability varies significantly by region, and not all dive areas have immediate access.
Before diving, it's recommended to:
- confirm nearest medical facilities
- check emergency procedures with local dive operators
- ensure dive insurance covers evacuation if required
Divers Alert Network
Diving emergency assistance available through DAN World.
+1-919-684-9111- 24/7 emergency hotline
- Diving medical assistance
- Evacuation coordination
Emergency contacts are provided for reference. Always verify local emergency services before diving.
Marine Life at Bulk Jetty
Set your expectations on structure over species here. No specific fish are firmly recorded, and what the notes describe is the setting: coral and general fish life gathered on the pylons, with razor clams across the silt floor.
So the interest is in what the old structure has collected instead of a named cast. Move slowly along the pylons and see what's taken up residence; that exploration is the point, more than ticking off particular animals. Look closely at the pylons themselves, since that's where most of the life has taken hold.
Dive Sites Near Bulk Jetty
View all dive sites in AustraliaDiscover more underwater gems in this area.
Dive Centers Near Bulk Jetty
Today: 09:00 - 17:00
Nearest Airports
Nearest airports to help plan travel to this dive area.
Search Flights
Check available flights and routes on Expedia, using the nearby airports listed in this section.
Search Flights on ExpediaFrequently Asked Questions
Can you still dive Bulk Jetty if it's closed?
Yes. The jetty is closed off up top and out of use, but the pylons below are exactly what you dive.
What's the deal with the silt?
The bottom is soft grey silt that clouds the moment it's disturbed. Good buoyancy and gentle finning are essential to keep visibility, and poor technique can silt the site out fast.
How deep is it?
About 8 m / 26 ft at most, averaging closer to 6 m / 20 ft, so it stays shallow and easy on air.
What marine life is here?
No specific species are firmly recorded. The notes describe coral and general fish life on the pylons, plus razor clams across the silt floor.
Is it a calm site?
Generally, yes. Garden Island shelters it, so swell stays modest, and the main variable is whether the silt has been stirred up.
Planning to dive Bulk Jetty?
Send one inquiry and receive offers directly from the best verified local dive operators.
Conditions are Excellent
07:00 - 14:00
Optimal conditions expected
Current conditions near Bulk Jetty show 12° air, 17° sea temperature, N/A waves, and 13 km/h wind. Forecast data is refreshed regularly to ensure accuracy.