Meet the site
Robb Jetty was built in 1921 to land livestock for the abattoirs at Robb's Jetty and served the meat works until it was demolished in the 1990s. What remains is a line of broken pylons and debris running about 120 m out from the beach below the CY O'Connor statue, the bronze of the engineer on horseback that stands in the shallows where he died in 1902. Nothing shows at the surface, so this is a navigation dive as much as a jetty dive.
The pylon stumps sit in about 4–8 m, with most of the dive around 5.5 m. They are well colonised by sponges, feather stars, ascidians and small corals, and scattered bottles, planks and metal give octopus and small fish shelter. Seagrass meadows along the southern side form a natural boundary and are worth a look for pipefish, cuttlefish and southern eagle rays. The bottom is silty sand but coarser than Ammo Jetty's, so visibility tends to be a little better, averaging around 6 m and reaching 10 m on good days.
Fish life is better than the flat approach suggests: cardinalfish, western talma, brown-spotted wrasse, crested and dusky morwong, striped trumpeter, yellowtail and silver trevally, wavy grubfish, boxfish, rough bullseye, batfish, flutemouth and lionfish. Gloomy octopus and giant cuttlefish are common, juvenile Port Jackson sharks turn up in winter, and blue-ringed octopus live in some of the bottles.
Robb Jetty suits divers comfortable with compass work and a surface swim who want something quieter than Ammo Jetty, and it is a good macro and night site.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Robb Jetty is recorded as Jetty/Pier in Perth. The listed access is shore. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
- Water movement
- Ask how swell and local exposure affect the proposed entry, exit and route.
- Overhead environments
- Ask whether the plan stays entirely in open water. A wreck or cave listing is not permission or training to enter.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Robb Jetty suitable for my certification?
The record lists Open Water. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Robb Jetty through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Gloomy octopus, giant cuttlefish, blue-ringed octopus (in bottles), juvenile Port Jackson sharks, southern eagle rays, cardinalfish, western talma, brown-spotted wrasse, crested and dusky morwong, striped trumpeter, yellowtail and silver trevally, wavy grubfish, boxfish, rough bullseye, batfish, lionfish, flutemouth, feather stars, nudibranchs, sponges
Location
Submerged remnant pylons of the 1921 Robb Jetty (dismantled in the 1990s), running about 120 m offshore near the CY O'Connor statue in CY O'Connor Reserve, South Fremantle / North Coogee.
Facilities nearby
Car park at the end of McTaggart Cove with CCTV, toilets and showers near the entrance. Cafes at Coogee and South Beach. Air fills in Fremantle and Spearwood.
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
howiesscuba.comhowiesscuba.combucketlistdiver.commarinelife.org.auRecord updated 26 Sept 2026. Source claims are being reviewed.
