Rapid Bay Jetty is one of the best jetty dives in South Australia, with abundant growth on the pylons and large numbers of many species of fish under and around the jetty. Pedestrian access to the original jetty has been closed to fishermen and the general public for several years, with the result that the underwater environment has significantly improved.
There is a Live Stream by AusOcean which will show the underwater conditions of the jetty.
Access is now from the new jetty via purpose-built stairs and platform.
The underwater route to the old jetty is marked by star droppers (approximately 50m from the new to the old jetty) or you can snorkel across.