Port Augusta Foreshore Jetty

Start with the structure, because half the internet still has this wrong. The Port Augusta wharf — 1886, about 355 metres, State Heritage listed — has been closed and fenced since 2019 on safety and structural grounds. It is now mid-rebuild under a $15 million upgrade with new decking, girders and around 200 new steel piles. Test piling alongside the wharf was completed in July 2026 to refine the detailed design, and no reopening date has been published. The structure you can actually fish is the Eastside Foreshore jetty on Wharflands Esplanade, beside the $1 million swimming pontoon, which news reports date to April 2025 while the council's own project page still carries an earlier target. It is a rare thing — a fishing platform inside a town centre, with a playground, BBQs, an automated public toilet and free parking behind it, in a town of almost 14,000. And the water is unlike anywhere else in the state: this is the head of Spencer Gulf, 300 km from open sea, all shallow drying flats, seagrass, mangroves and deep creek channels. Which is why the seasons run backwards here — winter is the good season and summer heat pushes the fish deeper.

Fish the deck for gar, tommies, mullet and flathead, with bream a fair bet around the structure rather than a documented catch, and set a drop net over the rail for blue swimmers, which is what the foreshore actually gives up. The glamour fishery is the annual run of big yellowtail kingfish into the top of the gulf, peaking about June to October, with fish over 40 kg taken historically around the old power station's hot-water outlet. That is a boat game worked with down-rigged live bait, and the named marks are the railway bridge north of town and the navigation beacons south of the station. The station closed in 2016 and plenty of people predicted the kingfish would stop coming; they kept coming, which is the most Port Augusta outcome available. The other genuinely special fishery is summer yellowfin whiting on the flats, and the technique is precise: travel the mangrove edges at high tide on a calm, clear day, look for the small dark tracks where the fish dig, and fish a morning high as it drains off the mangroves. Land-based, that game runs at Redbanks and Back Beach, on prawns, bloodworms or tubeworms with tackle as light as you can hold. Afternoon tides in summer get too hot to bother with.

Garfish are open here at 23 cm with a bag of 30, because Port Augusta is in the Spencer Gulf zone and the garfish closure covers only Gulf St Vincent — and they fish best in the cold months, which surprises people. Blue swimmer crabs are the local speciality and reportedly some of the biggest in South Australia: 11 cm across the carapace measured at the base of the largest spines, a bag of 20 and a boat limit of 60, berried females straight back, and no seasonal closure. Tommy ruff have no minimum size and a bag of 40, mullet are 21 cm and 60, and salmon are 21 cm with a bag of 20 up to 35 cm and 10 above it. Yellowfin whiting are 24 cm with a bag of 20, flathead 30 cm and 10, bream 30 cm and 10, and snook 45 cm and 20. King George whiting are 32 cm here with a bag of 10, since the size splits at 136°E and this is a long way east of it. Yellowtail kingfish are 60 cm with a bag of 1 per person and 3 per boat. Southern calamari is closed across Spencer Gulf until further notice, and snapper — once caught here in numbers and large sizes before the stock was over-exploited — is closed until at least 30 June 2027 in every zone but the South East.

Two pieces of local knowledge save a wasted trip. The first is the bloodworm run, which comes in winter after the July new moon and puts so much natural food in the water that the fishing temporarily switches off — locals wait it out rather than change tactics. The second is Yorkeys Crossing, which turns up on lists as a fishing spot and is not one: it is the unsealed bypass road, and the causeway sits inside Upper Spencer Gulf Sanctuary Zone 1, where no fishing or taking of anything is allowed. That sanctuary's southern boundary runs along 32°27.143'S, about 3.9 km north of the foreshore jetty, so anyone working north up the channel needs to know where the line is. Razorfish meat is prized local bait, but the upper-gulf beds between Commissariat Point and Blanche Harbour close from 1 October to the last day of February. The Yacht Club ramp south of Woolworths is the one that works at any tide, which in water this shallow is the deciding factor.

The Eastside Foreshore is on Wharflands Esplanade, directly beside the main shopping district — park free, walk a minute, fish. On site are BBQs, a playground, a skate park, a half-court, picnic tables, seating, drinking taps and a fully automated public toilet, with dogs allowed on lead and the Swimmers Memorial Garden alongside. The council lists disabled access and disabled-access public toilets for the precinct, which makes this the best mobility option on the upper gulf, though the jetty deck itself is not separately certified. A cycling and walking trail links the Eastside Foreshore to the Westside Foreshore and Back Beach. The swimming pontoon next door is a jetty, a gangway and a floating platform, so expect swimmers in summer. Four boat ramps serve the town, including the Yacht Club ramp south of Woolworths that is usable at any tide, and the second-oldest yacht club in South Australia will hand out charts and fishing tips.

Everything here inverts the usual advice. Winter is the productive season at the head of the gulf — gar, flathead and King George whiting all fish better in the cold, and the kingfish run is June to October — while summer heat warms the shallows enough to push fish deeper and make afternoon tides a waste of time. The summer game is early, on a morning high draining off the mangrove edges. Water clarity matters enormously for yellowfin whiting, which want calm and clear and will not tolerate dirty water. Tidal range at the top of a 300 km gulf is large and drives everything, and Spencer Gulf still runs its fortnightly dodge, which parks the water for a day. The bloodworm run after the July new moon flattens the bite for a spell, which is normal rather than bad luck.

The historic wharf is fenced and has been since 2019 — it is the thing everybody photographs and nobody may walk on, and construction traffic will only increase now that test piling is finished and the detailed design is being refined. Great white sharks are commonly seen at the head of the gulf, following the kingfish and snapper schools, and eagle and smooth rays are abundant in the shallows. Summer heat is a genuine hazard here rather than a complaint: this is the hottest spot on the gulf, and the flats and the angler both overheat. Swimmers use the pontoon beside the jetty, so mind the backcast. The drying flats and mangroves run a long way out — know the tide before walking anywhere off the formed structure. Spearfishing is prohibited within 100 m of any jetty in South Australia.

No. The 1886 heritage wharf, about 355 metres long, has been closed and fenced since 2019 for safety and structural reasons and is being rebuilt under a $15 million upgrade with around 200 new steel piles. Test piling alongside the wharf was completed in July 2026 to inform the detailed design, and no reopening date has been published. The public fishing structure is the Eastside Foreshore jetty on Wharflands Esplanade.

Garfish, tommy ruff, mullet, bream, flathead and snook off the deck, with blue swimmer crabs on drop nets — Port Augusta is said to hold some of the biggest blue swimmers in the state. Summer yellowfin whiting on the shallow flats at Redbanks and Back Beach are the local speciality. The famous yellowtail kingfish run of June to October is overwhelmingly a boat fishery.

No. Yorkeys Crossing is the unsealed bypass road around Port Augusta, and the causeway sits inside Upper Spencer Gulf Sanctuary Zone 1, where no fishing or taking of anything is permitted. The sanctuary's southern boundary runs along 32°27.143'S, roughly 3.9 km north of the foreshore jetty. The land-based options north of town that sources actually name are Redbanks, Back Beach and the railway bridge.

Winter, which is the opposite of most of the state. Garfish, flathead and King George whiting all fish better in the cold months and the kingfish run peaks from about June to October, while summer heat pushes fish deeper and makes afternoon tides largely pointless. The one exception is the summer yellowfin whiting session on the flats, which runs early on a morning high tide draining off the mangroves.

Drop nets or hoop nets baited with fish or fish-based products — meat and chicken baits in nets are illegal in South Australia — or a crab rake worked over the flats on a low tide. Minimum size is 11 cm across the carapace, the bag is 20 per person and 60 per boat, berried females go straight back, and there is no seasonal closure. You may use up to 10 hoop nets if you fish no other gear, or 3 alongside a rod, and no more than 3 drop nets each.