{"id":689042,"date":"2026-05-23T07:39:25","date_gmt":"2026-05-23T07:39:25","guid":{"rendered":"https:\/\/www.newsbeep.com\/au\/689042\/"},"modified":"2026-05-23T07:39:25","modified_gmt":"2026-05-23T07:39:25","slug":"south-australias-rapid-bay","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/au\/689042\/","title":{"rendered":"South Australia’s Rapid Bay"},"content":{"rendered":"

South Australia is one of Talia Greis\u2019 favourite destinations to visit, and it\u2019s not because of the beautiful rolling hills, stellar wine regions or the breathtaking sunset views over the Fleurieu Peninsula \u2013 it\u2019s because it holds the key to a world-class dive site known as Rapid Bay. Photographs by Talia Greis<\/p>\n

Rapid Bay boasts a thriving underwater ecosystem that attracts the beautiful and elusive leafy seadragon, but this beloved dive site teeters on the precipice of being lost to the sea, as divers and local business\u2019 fight to keep the jetty afloat following the devastating impact of a storm.<\/p>\n

\"AHead on shot of a leafy<\/p>\n

History<\/p>\n

Located on the Fleurieu Peninsula (about an hour from Adelaide), Rapid Bay is a monstrous jetty that stretches out over 488 metres into the middle of the ocean. This historic landmark, built in 1942 to support limestone mining operations, has long since been abandoned and closed to fishermen and pedestrians. Today, it stands as a monumental dive site, renowned for its thriving population of leafy seadragons. In response to the need for a more-modern and efficient structure, the construction of the \u2018new\u2019 Rapid Bay jetty was built side by side to its older cousin.<\/p>\n

\"ToweringThe Old Pier<\/p>\n

\u201cThey may look big, bright and golden in all the photos you\u2019ve seen, but without strobes to make them shine, they\u2019re just going to look like the inexhaustible amount of kelp floating around the jetty\u201d<\/p>\n

Today it serves as the platform for fishermen and determined divers who make the 240-metre trek to the end in order to swim out to the historic Old Jetty. However, and I can\u2019t stress this enough, the thriving underwater ecosystem that awaits is well worth the struggle.<\/p>\n

The Old Pier of Rapid Bay<\/p>\n

After the long trek down the new jetty, swimming over to the old jetty, and a hefty surface swim past the split pylons, the descent into Rapid Bay\u2019s dive site is surreal. In fact, it\u2019s so overwhelming you don\u2019t know where to start \u2013 high towering pylons decorated with coral growth, fallen debris and artificial reefs, schooling fish and odd bottom dwellers in and around every hidden corner. It\u2019s hard to not get side tracked on the long journey down the jetty, but I\u2019ve often found that the real magic sets in at the T-section at the end. If you haven\u2019t gotten too distracted and make it to this part of the dive with enough gas, the hunt can begin for the elusive leafy seadragon, which I\u2019ve found to be (without doubt) the most-camouflaged and enveloped creature I have ever seen. But man, are they beautiful! <\/p>\n

\"FineAtmospheric leafy shot<\/p>\n

\"ALeafy seadragon in its natural habitat<\/p>\n

\"ALeafy Sea dragon on black background<\/p>\n

Their location shifts with the seasons as the leafies settle into their preferred spots, but I\u2019ve often found that taking a left at the T-section is almost always a sure bet Because leafy seadragons are so good at staying hidden, the best way to cover the grounds of the 240-metre T-section is to zig zag up and down the pylons, slowly making your way down to the end of the left side, keeping a clear visual picture of what they look like in your head. They may look big, bright and golden in all the photos you\u2019ve seen, but without strobes to make them shine, they\u2019re just going to look like the inexhaustible amount of kelp floating around the jetty. Because they\u2019re exceptionally poor swimmers, they usually cling to the pylons for shelter -especially in surgy conditions \u2013 and remain relatively close to the ocean floor.<\/p>\n

\"ALeefy Sea dragon<\/p>\n

Did You Know?<\/p>\n

Although the main point of focus for Rapid Bay is leafy seadragons, an entire world of underwater magic can be discovered at every hidden corner. Schooling old wives, southern blue devil fish, nudibranchs, cuttlefish, smooth rays, octopus<\/a>, and even the occasional seal or dolphin. Time allocation is paramount in order to make the most of your dive.<\/p>\n

Leafy seadragons <\/p>\n

What a lot of people don\u2019t know about leafy seadragons is their vulnerability in the face of stressful situations. These beautiful creatures have delicate swim bladders which help to control their buoyancy, but like other marine creatures, rapid changes in depth can cause an expansion of gases in their bladder which can be incredibly harmful and sometimes fatal. Upon approaching, admiring, or photographing them, it\u2019s extremely important to be mindful and aware of their movements \u2013 if they start to rise, it\u2019s time to retreat and give them some space. Buoyancy and good diving etiquette is also extremely important at this particular site \u2013 being masters of camouflage serves these creatures well in the face of underwater predators, but can be a curse in the face of \u2018lawn mower\u2019 divers kicking up the substrate.<\/p>\n

Leafy in the weeds<\/p>\n

Did You Know?<\/p>\n

Given the sheer grandeur of this site, it\u2019s important to come prepared and ready for anything. Being mindful of gas consumption and knowing when to turn around is essential as it is a long swim back to the starting point. No one likes a drawn-out surface swim.<\/p>\n

\"ACuttlefish<\/p>\n

\u201cUpon approaching, admiring, or photographing them, it\u2019s extremely important to be mindful and aware of their movements \u2013 if they start to rise, it\u2019s time to retreat and give them some space\u201d<\/p>\n

The future of Rapid Bay <\/p>\n

In June 2025, a 20-metre exclusion zone was placed around the old jetty after it was hit by a monstrous storm, which rendered the structure unsafe. This was a devastating blow to local business owners like Peter Corrigon from Sea Dragon Dive Lodge, who was already suffering due to the state\u2019s algal bloom. Now the future of Rapid Bay is in the government\u2019s hands, who initially claimed they lacked the funds to repair the jetty, abandoning the prospect of any future diving in the area. <\/p>\n

\"TopsideThe jetty is derelict after a huge storm<\/p>\n

However, divers and tourism operators like Pete are fighting to keep the dream alive, remaining positive for a good outcome by lobbying the South Australian Government to reduce or remove the exclusion zone all together. A decision is set to be made at the end of this year, so stay tuned \u2013 if the exclusion remains, this national treasure may soon become a distant memory for those fortunate enough to have experienced it. As divers, we all have those special places close to our heart that keep us coming back. For years I\u2019d make my journey through the rolling hills of the peninsula to experience Rapid Bay and its leafy wonderland. And although I\u2019m grateful for the memories captured through my lens, I\u2019m also saddened by its closure and undetermined future. If you\u2019d like to take action and see the pier reopen, hop online<\/a> at: www.change.org\/p\/restore-water-access-to-the-old-rapid-bay-jetty in <\/a>order to sign a petition to order to restore in water access to the beloved Australian dive site.<\/p>\n

\"PanoramicThe jetty stretching out into the sea<\/p>\n

Four hundred metres out at the end of the pier, you truly feel at the mercy of the ocean, which can often strike up an almost-eerie and ominous ambiance. And sometimes for good reason. I once had a breathtaking encounter with a school of 50-plus kingfish jetting through the water at full speed, about ten metres off the pier and heading into open water. I couldn\u2019t help but wonder if they\u2019re hunting or being hunted. Later that day a fisherman reported having seen a great white shark at that exact location chasing kingfish.<\/p>\n

This is, after all, a very sharky part of the world. Still, if you can summon the courage to venture away from the jetty and into the beautiful seagrass gardens surrounding it, you\u2019ll be rewarded with countless opportunities to spot leafies drifting gracefully among the blades.<\/p>\n

For a deeper look at the incredible biodiversity found in this region, check out our ultimate South Australia dive guide<\/a>.<\/p>\n

FAQs<\/p>\n

Why is South Australia\u2019s Rapid Bay considered a world-class dive site?<\/p>\n

The site is globally renowned for its thriving marine ecosystem, particularly because it serves as a reliable hotspot for the rare and highly camouflaged leafy seadragon. The towering old jetty pylons are covered in vibrant soft corals and support massive schools of temperate fish.<\/p>\n

Where is the Rapid Bay dive site located?<\/p>\n

Rapid Bay is situated on the spectacular Fleurieu Peninsula, approximately a one-hour drive south of Adelaide, South Australia.<\/p>\n

What is the current status of the old Rapid Bay jetty for divers?<\/p>\n

Following a devastating storm in June 2025, a 20-metre exclusion zone was placed around the historic old jetty structure due to safety concerns. Local divers and tourism business owners are actively campaigning to remove or reduce this restriction to restore full water access.<\/p>\n

How do you find leafy seadragons when diving at Rapid Bay?<\/p>\n

Because they perfectly mimic surrounding kelp and floating debris, finding them requires patience. Divers should swim out to the T-section of the jetty, take a left, and move in a slow zig-zag pattern up and down the pylons close to the ocean floor where they seek shelter.<\/p>\n

What diving etiquette should be followed near leafy seadragons?<\/p>\n

Leafy seadragons are highly fragile and vulnerable to stress. Divers must maintain excellent buoyancy to avoid kicking up the substrate, use natural light where possible, and back away immediately if the creature begins to rise vertically, which indicates a dangerous stress response.<\/p>\n

This article was originally published in\u00a0Scuba Diver Magazine<\/a><\/p>\n

Subscribe today with promo code DIVE1 \u2014 enjoy 12 months for just \u00a31!<\/p>\n","protected":false},"excerpt":{"rendered":"South Australia is one of Talia Greis\u2019 favourite destinations to visit, and it\u2019s not because of the beautiful…\n","protected":false},"author":2,"featured_media":689043,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[64,63,44],"class_list":["post-689042","post","type-post","status-publish","format-standard","has-post-thumbnail","category-australia","tag-au","tag-australia","tag-news"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/689042","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/comments?post=689042"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/689042\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media\/689043"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media?parent=689042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/categories?post=689042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/tags?post=689042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}