A witness on a clifftop said they saw the shark attack the man, which left him floating before he was attacked again.
The witness believes the shark was about 4.5 metres in length.
"Eyre and Western Police immediately responded and initiated a search with the assistance of Police Water Operations, PolAir, State Emergency Service (SES) and local volunteers," South Australia Police said in a statement.
"The man's body is yet to be found and the search will continue through to day's end," police said.
The beach is popular among surfers on the Eyre Peninsula.
It's also known for having a large population of great white sharks.
This is the third shark attack off the South Australian coast this year.
Streaky Bay is about 700 kilometres from Adelaide, on the state's far west coast.
Former United States President Donald Trump said he is endorsing former Alaska Governor Sarah Palin in her bid to fill Alaska’s at-large US House seat…
<img src="https://www.mtlblog.com/media-library/a-cozy-restaurant-in-old-quebec-city-surrounded-by-fall-decor-including-pumpkins-and-flowers-right-a-woman-poses-in-quebec-ci.jpg?id=53871340&width=1245&height=700&coordinates=2%2C0%2C3%2C0"/><br/><br/><p>If cobblestone streets, golden leaves, and <a href="https://www.mtlblog.com/enchanted-alley-montreal-european-christmas-vibes">cozy, European vibes</a> sound like your <a href="https://www.mtlblog.com/muskoka-perfect-fall-road-trip-from-montreal">dream autumn getaway</a>, you don't need to go far. <a href="https://www.narcity.com/small-town-near-toronto-most-beautiful-in-canada">Canada's "most beautiful" city</a> is the perfect place to spend a fall weekend — and it's just a few hours from Montreal.</p><p>We recently <a href="https://www.facebook.com/NarcityCanada/posts/pfbid03tDmEgb38pejZbwHj6CskSsJkus5nuPEusFtu5mqxh8nCWPCV5T7YomsRFXMqSdAl">asked readers</a> on Narcity's Facebook page to share the "most beautiful" places they've ever visited in Canada. While <a href="https://www.mtlblog.com/enchanting-european-towns-near-montreal">charming small towns</a> like Banff and Jasper repeatedly got a shoutout, one city came up again and again: <a href="https://www.mtlblog.com/visit-quebec-city-from-montreal-during-fall">Quebec City.</a></p><p>"Those views are breathtaking, especially in the fall," one person wrote. </p><p>Another added, "I've been all over Canada and nowhere beats [Quebec City] for me. Simply perfect."</p><p>In fact, countless readers praised the Quebec capital for its unbeatable fall colours, historic architecture, and old-world feel that <a href="https://www.mtlblog.com/montreal-italian-restaurant-il-cortile">transports you to another country.</a></p><blockquote class="instagram-media" data-instgrm-permalink="https://www.instagram.com/p/Cju-q6ELcCm/?utm_source=ig_web_copy_link" data-instgrm-version="4" style="background:#FFF; border:0; border-radius:3px; box-shadow:0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width:658px; padding:0; width:99.375%; width:-webkit-calc(100% - 2px); width:calc(100% - 2px);">
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<a href="https://www.instagram.com/p/Cju-q6ELcCm/?utm_source=ig_web_copy_link" style=" color:#000; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:normal; line-height:17px; text-decoration:none; word-wrap:break-word;" target="_top">See on Instagram</a>
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</blockquote><script async="" defer="" src="//platform.instagram.com/en_US/embeds.js"></script><p>And it's not just Narcity and MTL Blog readers that rate Quebec City so highly. It was previously ranked as one of Canada's most beautiful cities <a href="https://theculturetrip.com/north-america/canada/articles/the-10-most-beautiful-towns-in-canada" rel="noopener noreferrer" target="_blank">by Culture Trip</a>, which praised the Old Town's cobblestone streets, grand cathedrals, and European charm.</p><p>Tucked along the St. Lawrence River, this historic city is like stepping into a painting once autumn rolls in. From late September through October, the city transforms into a cozy fall paradise, with golden trees lining the old streets and colourful leaves crunching underfoot.</p><p>Old Quebec, a UNESCO World Heritage Site, is the heart of it all. With its narrow lanes, grand stone buildings, and sidewalk cafes, it feels like a European village in the middle of Canada — no passport required! </p><p>Nearby, the iconic Fairmont Le Château Frontenac sits high above the city like a fairytale castle, and will make you feel like you're soaking up the season in a Disney movie.</p><blockquote class="instagram-media" data-instgrm-permalink="https://www.instagram.com/p/ChPUyYzOwDA/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==" data-instgrm-version="4" style="background:#FFF; border:0; border-radius:3px; box-shadow:0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width:658px; padding:0; width:99.375%; width:-webkit-calc(100% - 2px); width:calc(100% - 2px);">
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<a href="https://www.instagram.com/p/ChPUyYzOwDA/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==" style=" color:#000; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:normal; line-height:17px; text-decoration:none; word-wrap:break-word;" target="_top">See on Instagram</a>
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</blockquote><script async="" defer="" src="//platform.instagram.com/en_US/embeds.js"></script><p>For those looking to take in even more of Quebec City's natural beauty, the Île d'Orléans is just a bridge away and glows with a thousand colours during fall. This peaceful island is home to family-owned farms and quaint villages, where you can pick up fresh apples, cider, and maybe even a pumpkin or two.</p><p>Of course, no trip to Quebec City during the fall would be complete without indulging in the local seasonal flavours. From buttery pastries at charming French bakeries to maple lattes and hot apple cider, this city takes cozy comfort food to new levels.</p><blockquote class="instagram-media" data-instgrm-permalink="https://www.instagram.com/p/DCjjaNfBGF5/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==" data-instgrm-version="4" style="background:#FFF; border:0; border-radius:3px; box-shadow:0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width:658px; padding:0; width:99.375%; width:-webkit-calc(100% - 2px); width:calc(100% - 2px);">
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<a href="https://www.instagram.com/p/DCjjaNfBGF5/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==" style=" color:#000; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:normal; line-height:17px; text-decoration:none; word-wrap:break-word;" target="_top">See on Instagram</a>
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</blockquote><script async="" defer="" src="//platform.instagram.com/en_US/embeds.js"></script><p>Just 15 minutes outside the Old Town, <a href="https://www.sepaq.com/destinations/parc-chute-montmorency/index.dot?language_id=1" rel="noopener noreferrer" target="_blank">Montmorency Falls</a> puts on its own seasonal show. At over 80 metres high, the waterfall is beautiful at any time of year — but framed by fiery red and orange trees, it's even better. You can walk across a suspension bridge above it or even zipline right over the falls.<br/></p><p>And if you're in the mood for even more fall charm, Île d'Orléans is just a short drive away. The island is filled with orchards, farm stands, and tiny villages, making it the ultimate cozy day trip from the city.</p><p>What's more, you don't even need a car to get there. Quebec City is a three-hour-ish train ride from Montreal, and tickets start around $50. Buses are also available, and even cheaper.</p><h3>Canada's most beautiful city</h3><br/><blockquote class="instagram-media" data-instgrm-permalink="https://www.instagram.com/p/DMJdhUEMfxM/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==" data-instgrm-version="4" style="background:#FFF; border:0; border-radius:3px; box-shadow:0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width:658px; padding:0; width:99.375%; width:-webkit-calc(100% - 2px); width:calc(100% - 2px);">
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<a href="https://www.instagram.com/p/DMJdhUEMfxM/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==" style=" color:#000; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:normal; line-height:17px; text-decoration:none; word-wrap:break-word;" target="_top">See on Instagram</a>
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</blockquote><script async="" defer="" src="//platform.instagram.com/en_US/embeds.js"></script><p>When: Late September to late October<br/></p><p>Address: Quebec City, QC</p><p>Why You Need To Go: Quebec City captures the best of the season — golden landscapes, cozy food, and quaint, cobblestone streets. If you're looking for a weekend away without going too far, it's one of the easiest (and apparently most beautiful!) options around.</p><p><a href="https://www.quebec-cite.com/en" rel="noopener noreferrer" target="_blank">Quebec City tourism website</a></p><p><em>Before you get going, check out our <a href="https://www.mtlblog.com/responsible-travel-guidelines" target="_blank">Responsible Travel Guide</a> so you can be informed, be safe, be smart, and most of all, be respectful on your trip.</em></p>
WellStock/Shutterstock More people in the UK have gone dry this January than ever before, so drinking, not drinking, and navigating a course between the two,…