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22,706-acre Spencer Gulf. Sector 102 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 102 trip-scale surveyed footprint within Spencer Gulf. Australia's long western gulf, divided from upper tidal flats through major bays and channels to its offshore-facing mouth. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 106 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What the data behind the map says about each species, season by season:
Traced from the shoreline, Spencer Gulf - Sector 102 runs 22,707 acres with 28.1 miles of edge. The basin is a simple one (shoreline index 1.3) — close to a bowl, so the structure on the chart matters more than the bank. About 3% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Tip to tip the water measures near 11.3 mi with a 3.5-mi widest point. Closest neighbour on DepthScout: Spencer Gulf - Sector 103, 10 mi east of here.
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 |
|---|---|---|
| sand flathead (Sand Flathead) | 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.
In spring, sand flathead run shallow here, mostly 8 to 35 ft. Midsummer fish sit out in 16 to 80 ft before dropping to 8 to 35 ft for winter. Summer sand flathead concentrate at Sharp break, a good-rated drop-off around 61 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 | open water | see map |
| Summer | 16 to 80 ft | dawn & dusk | Sharp break (61 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Sharp break (61 ft) | see map |
| Winter | 8 to 35 ft | dawn | open water | see map |
Early season gummy shark use the shallows, holding in 8 to 40 ft. Expect a summer slide to 16 to 106 ft, then a winter hold in 8 to 40 ft. Put Deepest basin first on the milk run — a deep basin near 102 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 | open water | see map |
| Summer | 16 to 106 ft | dawn & dusk | Deepest basin (102 ft) | see map |
| Fall | 8 to 84 ft | dawn & dusk | Sharp break (61 ft) | see map |
| Winter | 8 to 40 ft | dawn | open water | see map |
The spring pattern is a shallow one: yellowtail kingfish in 8 to 45 ft. As the season builds they drop to 16 to 106 ft, wintering in 22 to 106 ft. Top water on the chart: Sharp break, a drop-off in the 61 ft range, prime in summer. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 45 ft | dawn & dusk | open water | see map |
| Summer | 16 to 106 ft | dawn & dusk | Sharp break (61 ft) | see map |
| Fall | 8 to 91 ft | dawn & dusk | Sharp break (61 ft) | see map |
| Winter | 22 to 106 ft | midday | Sharp break (61 ft) | see map |
Spring puts mulloway in skinny water — 5 to 30 ft is the zone. As the season builds they drop to 14 to 100 ft, wintering in 18 to 100 ft. Summer mulloway concentrate at Deepest basin, a prime-rated deep basin around 102 ft. Warm-month bites cluster around early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 30 ft | dawn & dusk | open water | see map |
| Summer | 14 to 100 ft | dawn & dusk | Deepest basin (102 ft) | see map |
| Fall | 5 to 70 ft | dawn & dusk | Sharp break (61 ft) | see map |
| Winter | 18 to 100 ft | midday | Deepest basin (102 ft) | see map |
7 pieces of structure are mapped here — Deepest basin, around 102 ft, is the deepest of them.
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 Spencer Gulf - Sector 102 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 →
Spencer Gulf - Sector 102 is about 106 ft (32 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 sand flathead, gummy shark, yellowtail kingfish, mulloway roster for Spencer Gulf - Sector 102. 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.
Deepest basin is the top-rated area: a deep basin in about 102 ft of water that rates prime for gummy shark in summer. The map above holds the full rated-spot list for every species and season.
For sand flathead, 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 Spencer Gulf - Sector 102 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.
Spencer Gulf - Sector 103 10 mi · Gulf St Vincent - Sector 21 26 mi · Spencer Gulf - Sector 97 30 mi · Gulf St Vincent - Sector 26 39 mi · Spencer Gulf - Sector 105 40 mi · Gulf St Vincent - Sector 29 40 mi · Gulf St Vincent - Sector 22 41 mi · Spencer Gulf - Sector 98 45 mi · Spencer Gulf - Sector 90 45 mi · Gulf St Vincent - Sector 30 47 mi · Gulf St Vincent - Sector 19 56 mi · Gulf St Vincent - Sector 14 58 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.