Salt water depth chart
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6,019-acre King Sound. Sector 28 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 28 trip-scale surveyed footprint within King Sound. A strongly tidal Kimberley sound of island passages, turbid channels, mud banks and river-fed southern arms. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 21 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The rest of this page walks each species through its year, using the map's own scoring.
The outline encloses 6,019 acres, worked by 17.9 miles of shoreline. With a 1.7 development index there's bank structure worth casting at, in moderation. The shallow band under 15 ft claims about 90% of the surface — that's where the groceries are. End to end it runs roughly 6.4 mi, about 3.1 mi across. Its nearest charted neighbour, King Sound - Sector 35, is 8 mi to the south.
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 |
|---|---|---|
| barramundi (Barramundi) | official species listing | — |
| golden snapper (Golden Snapper) | official species listing | — |
| black jewfish (Black Jewfish) | official species listing | — |
| king threadfin (King Threadfin) | official species listing | — |
| queenfish (Queenfish) | official species listing | — |
| giant trevally (Giant Trevally) | official species listing | — |
| mangrove jack (Mangrove Jack) | official species listing | — |
| Spanish mackerel (Narrow-barred Spanish Mackerel) | official species listing | — |
| coral trout (Coral Trout) | official species listing | — |
Official species-evidence source.
In spring, barramundi run shallow here, mostly 2 to 18 ft. Summer keeps them at 2 to 18 ft, and they winter in 6 to 21 ft. Fall barramundi concentrate at Sharp break, a good-rated drop-off around 7 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 | 2 to 18 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Summer | 2 to 18 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Fall | 2 to 21 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Winter | 6 to 21 ft | midday | Sharp break (7 ft) | see map |
Spring puts golden snapper in skinny water — 5 to 21 ft is the zone. Summer fish stay in 5 to 21 ft, and winter fish hold in 6 to 21 ft. Sharp break is the standout, a drop-off at roughly 7 ft, rated good for fall golden snapper. Plan around early morning and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 21 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Summer | 5 to 21 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Fall | 3 to 21 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Winter | 6 to 21 ft | midday | Sharp break (7 ft) | see map |
Early season black jewfish use the shallows, holding in 5 to 21 ft. Even in summer they hold at 5 to 21 ft; winter keeps them in 5 to 21 ft. The chart's best answer is Sharp break — drop-off, 7 ft, good for fall. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 21 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Summer | 5 to 21 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Fall | 3 to 21 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Winter | 5 to 21 ft | midday | Sharp break (7 ft) | see map |
In spring, king threadfin run shallow here, mostly 2 to 16 ft. Summer keeps them at 2 to 16 ft, and they winter in 6 to 21 ft. Spring king threadfin concentrate at Shallow measured flat, a prime-rated feeding flat around 2 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 | 2 to 16 ft | dawn & dusk | Shallow measured flat (2 ft) | see map |
| Summer | 2 to 16 ft | dawn & dusk | Shallow measured flat (2 ft) | see map |
| Fall | 2 to 21 ft | dawn & dusk | Shallow measured flat (2 ft) | see map |
| Winter | 6 to 21 ft | midday | Sharp break (7 ft) | see map |
Come spring, look for queenfish tight to the bank in 3 to 21 ft. Through summer count on 3 to 21 ft; the winter hold is 6 to 21 ft. Start at Sharp break. It's a drop-off holding about 7 ft of water and rates prime come fall. Prime time lands in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 21 ft | dawn & dusk | Shallow measured flat (3 ft) | see map |
| Summer | 3 to 21 ft | dawn & dusk | Shallow measured flat (3 ft) | see map |
| Fall | 2 to 21 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Winter | 6 to 21 ft | midday | Sharp break (7 ft) | see map |
In spring, giant trevally run shallow here, mostly 3 to 21 ft. Summer keeps them at 3 to 21 ft, and they winter in 5 to 21 ft. Fall giant trevally concentrate at Sharp break, a prime-rated drop-off around 7 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 | 3 to 21 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Summer | 3 to 21 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Fall | 2 to 21 ft | dawn & dusk | Sharp break (7 ft) | see map |
| Winter | 5 to 21 ft | midday | Sharp break (7 ft) | see map |
King Sound - Sector 28 also holds mangrove jack (2 to 18 ft in summer), narrow-barred spanish mackerel (4 to 21 ft in summer), coral trout (5 to 21 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Count 7 structure marks on this chart. The deepest, Sharp break, sits near 15 ft.
No facility from the cited Western Australia Department of Transport Public Boat Ramps (DOT-033) 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://catalogue.data.wa.gov.au/dataset/boat-ramps
Private land and private launches need the owner's permission — please ask first.
Season dates, license requirements, and size and bag limits for Western Australia waters are set by the WA DPIRD (current recreational-fishing rules) — and special regulations can apply to King Sound - Sector 28 specifically, so confirm the current rules before you fish. Check WA DPIRD's live regional guide, licences, demersal-management measures, species limits, seasonal and spatial closures, marine parks, protected species and permitted gear before every trip. Species available to target can change by bioregion and date; a regional occurrence record is not an open-season signal. A directly measured contour, fishing spot or access lead never grants fishing, retention, port entry, parking or launching permission.
Check the official Western Australia fishing regulations →
WA DPIRD current recreational-fishing guides →
Check special-area and water-specific rules →
King Sound - Sector 28 is about 21 ft (6 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 Western Australia Department of Primary Industries and Regional Development regional evidence informs the barramundi, golden snapper, black jewfish, king threadfin, queenfish, giant trevally, mangrove jack, narrow-barred spanish mackerel, coral trout roster for King Sound - Sector 28. 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 2 ft of water that rates prime for king threadfin in spring. The interactive chart above rates every spot for each species and season.
For barramundi, 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 King Sound - Sector 28 is regulated by the WA DPIRD (current recreational-fishing rules). Check the official Western Australia regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
King Sound - Sector 35 8 mi · King Sound - Sector 27 14 mi · King Sound - Sector 34 17 mi · King Sound - Sector 41 28 mi · King Sound - Sector 40 36 mi · King Sound - Sector 32 38 mi · King Sound - Sector 14 39 mi · King Sound - Sector 25 46 mi · King Sound - Sector 07 49 mi · King Sound - Sector 06 55 mi · King Sound - Sector 11 57 mi · King Sound - Sector 17 59 mi
See how King Sound - Sector 28 stacks up: best barramundi lakes in Western Australia · best golden snapper lakes in Western Australia · best black jewfish lakes in Western Australia · best king threadfin lakes in Western Australia
Browse all Western 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.