Palm Beach Jetty is the jetty on the Rockingham foreshore near the yacht club, a few minutes from the Wreck Trail. Local opinion on it is blunt: Howies described it as a new jetty with nothing growing on it and a very silty bottom, with an average visibility of 0.5 m, and advised not to bother. The Marine Life Network describes an old jetty in front of the yacht club, 10–19 m deep, with visibility slightly better than the Wreck Trail but not a great dive. Both descriptions may be accurate at different times, as the jetty has been rebuilt and extended.

What the site offers is depth close to shore in a sheltered bay, with the pylons slowly colonising. Over time pylons in Cockburn Sound develop sponges, ascidians and soft growth that attract nudibranchs, seahorses and small fish, as at Ammo Jetty and KGT, so the jetty may improve as it ages. At present most divers treat it as a curiosity or a place for skills practice.

It is easy to reach, with parking, toilets and cafes nearby, and it is protected from almost all wind except strong northerlies. For a better experience, the Wreck Trail a few hundred metres west or the Kwinana Grain Terminal a short drive north are the obvious alternatives.

The site suits divers who want a quick, sheltered dive close to Rockingham's facilities and who are comfortable in poor visibility. It is not recommended for photography or for divers new to low visibility, and it should not be the main reason for a trip to Rockingham.

Drive to the Rockingham foreshore on Rockingham Beach Road and park in the Palm Beach car parks near the jetty and yacht club. Kit up at the car, walk to the beach beside the jetty and enter from the sand, following the pylons out. The Wreck Trail entry at Flinders Lane is a few minutes' walk away, so the two sites can be combined.

Rockingham's cafes, toilets and dive shops are within walking distance. Allow about 50 minutes from the Perth CBD.

Sheltered from ocean swell by Cockburn Sound and Garden Island and from the south by Point Peron; only strong northerly and north-westerly winds make it rough. The seabed is very silty, and Howies recorded an average visibility of 0.5 m, so the site is best on calm mornings before other water users stir it up and before the summer sea breeze. Visibility is usually worse after rain and on busy weekends.

Enter beside the jetty and follow the pylons seaward to the deeper end at up to 15 m, staying just off the bottom to avoid lifting silt, then return along the other side. Divers wanting more to see can surface and swim west to the Wreck Trail lines.

No regular operator trips; divers generally prefer the nearby Wreck Trail.