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86,043-acre Gulf St Vincent. Sector 15 Australian saltwater fishing map showing only directly measured AusBathyTopo 2026 cells, source-qualified fishing spots, official regional fish evidence, seasonal forage context, access guidance and current-rule links. Sector 15 trip-scale surveyed footprint within Gulf St Vincent. The Adelaide gulf from its northern flats through central channels to Kangaroo Island-facing entrances. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 75 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Every species below gets its seasonal read from the same numbers driving the chart.
Traced from the shoreline, Gulf St Vincent - Sector 15 runs 86,037 acres with 99.2 miles of edge. That shoreline is heavily fingered (development index 2.4) — bays, points and pockets everywhere, which multiplies the fishable edge. 17% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. End to end it runs roughly 20.1 mi, about 15.2 mi across. For a second option, Gulf St Vincent - Sector 14 lies 11 mi west.
Regional occurrence does not mean equal abundance, child-specific catch rate, retention permission or a promised catch. Live state, territory, Commonwealth, protected-area and local rules always control. The roster may combine exact-water monitoring with habitat-filtered official regional evidence; it does not imply that every species is equally abundant throughout the mapped section.
| Species | Evidence basis | Count / date |
|---|---|---|
| King George whiting (King George Whiting) | official species listing | — |
| sand flathead (Sand Flathead) | official species listing | — |
| black bream (Black Bream) | official species listing | — |
| Australian salmon (Australian Salmon) | official species listing | — |
| silver trevally (Silver Trevally) | official species listing | — |
| gummy shark (Gummy Shark) | official species listing | — |
| yellowtail kingfish (Yellowtail Kingfish) | official species listing | — |
| mulloway (Mulloway) | official species listing | — |
Official species-evidence source.
Start shallow in spring: king george whiting sit in 3 to 18 ft that time of year. Summer pushes them deeper, 8 to 45 ft, and winter fish settle into 11 to 45 ft. The spot to know is Shallow measured flat, a feeding flat in about 5 ft of water that rates prime for king george whiting in spring. Warm-month bites cluster around early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 18 ft | dawn & dusk | Shallow measured flat (5 ft) | see map |
| Summer | 8 to 45 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Fall | 3 to 31 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Winter | 11 to 45 ft | midday | Sharp break (18 ft) | see map |
In spring, sand flathead run shallow here, mostly 8 to 35 ft. Midsummer fish sit out in 15 to 75 ft before dropping to 8 to 35 ft for winter. Summer sand flathead concentrate at Deepest basin, a prime-rated deep basin around 75 ft. Fish it in early morning and the evening and you'll meet the bite.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | Shallow measured flat (5 ft) | see map |
| Summer | 15 to 75 ft | dawn & dusk | Deepest basin (75 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Winter | 8 to 35 ft | dawn | Shallow measured flat (5 ft) | see map |
Early season black bream use the shallows, holding in 2 to 16 ft. Expect a summer slide to 7 to 35 ft, then a winter hold in 2 to 16 ft. Put Sharp break first on the milk run — a drop-off near 18 ft that grades good for summer. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 16 ft | dawn & dusk | Sharp break (15 ft) | see map |
| Summer | 7 to 35 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Winter | 2 to 16 ft | dawn | Sharp break (15 ft) | see map |
Come spring, look for australian salmon tight to the bank in 4 to 30 ft. They move out to 13 to 75 ft in summer and finish the year down in 4 to 30 ft. If you only fish one area, make it Sharp break: a drop-off around 18 ft that scores prime in summer. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Shoreline point (3 ft) | see map |
| Summer | 13 to 75 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Winter | 4 to 30 ft | dawn | Shoreline point (3 ft) | see map |
Early season silver trevally use the shallows, holding in 4 to 30 ft. Expect a summer slide to 13 to 75 ft, then a winter hold in 17 to 75 ft. Put Sharp break first on the milk run — a drop-off near 18 ft that grades prime for summer. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Shoreline point (3 ft) | see map |
| Summer | 13 to 75 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Winter | 17 to 75 ft | midday | Sharp break (18 ft) | see map |
Early season gummy shark use the shallows, holding in 8 to 40 ft. Expect a summer slide to 11 to 75 ft, then a winter hold in 8 to 40 ft. Put Deepest basin first on the milk run — a deep basin near 75 ft that grades prime for summer. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 40 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Summer | 11 to 75 ft | dawn & dusk | Deepest basin (75 ft) | see map |
| Fall | 7 to 75 ft | dawn & dusk | Deepest basin (75 ft) | see map |
| Winter | 8 to 40 ft | dawn | Sharp break (18 ft) | see map |
Gulf St Vincent - Sector 15 also holds yellowtail kingfish (12 to 75 ft in summer), mulloway (11 to 75 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Gulf St Vincent - Sector 15 carries 11 mapped structure features, topping out (or rather bottoming out) at Deepest basin, about 75 ft down.
No facility from the cited South Australian boat ramps and marine facilities source was spatially attached within 3 km of this directly measured map footprint during the 2026-09-08 audit. This is an evidence gap, not a claim that public access is absent. Check the official portal, live site signs, tides, ramp condition, vessel suitability, fees, parking, working-port restrictions and landowner permissions before travel: https://www.sa.gov.au/topics/boating-and-marine/boat-ramps-and-marine-facilities
Private land and private launches need the owner's permission — please ask first.
Season dates, license requirements, and size and bag limits for South Australia waters are set by the PIRSA (current recreational species limits) — and special regulations can apply to Gulf St Vincent - Sector 15 specifically, so confirm the current rules before you fish. Check PIRSA's live species lookup, closures and SA Fishing app before every trip. Snapper remains absent from these page rosters because the current management closure prohibits targeting and catch-and-release in the affected South Australian waters through the stated closure period. Verify all size, boat and possession limits, protected areas, gear controls and local access directions. A contour, spot or access lead never grants fishing, retention, entry, parking or launching permission.
Check the official South Australia fishing regulations →
PIRSA SA Fishing app and live rules →
Check special-area and water-specific rules →
Gulf St Vincent - Sector 15 is about 75 ft (23 m) deep at its deepest point. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Official coastal monitoring from Primary Industries and Regions South Australia regional evidence informs the king george whiting, sand flathead, black bream, australian salmon, silver trevally, gummy shark, yellowtail kingfish, mulloway roster for Gulf St Vincent - Sector 15. The mixed roster combines exact-water records where available with habitat-filtered regional evidence; not every species is documented at this exact water, and it is not a promise of equal abundance or a catch on a particular trip.
Shallow measured flat is the top-rated area: a feeding flat in about 5 ft of water that rates prime for king george whiting in spring. The map above holds the full rated-spot list for every species and season.
For king george whiting, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Gulf St Vincent - Sector 15 is regulated by the PIRSA (current recreational species limits). Check the official South Australia regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Gulf St Vincent - Sector 14 11 mi · Spencer Gulf - Sector 84 15 mi · Gulf St Vincent - Sector 19 15 mi · Gulf St Vincent - Sector 10 19 mi · Spencer Gulf - Sector 98 23 mi · Spencer Gulf - Sector 90 28 mi · Gulf St Vincent - Sector 22 33 mi · Spencer Gulf - Sector 97 36 mi · Spencer Gulf - Sector 105 36 mi · Gulf St Vincent - Sector 21 42 mi · Gulf St Vincent - Sector 26 50 mi · Spencer Gulf - Sector 103 57 mi
Browse all South Australia fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.