Salt water depth chart
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63,267-acre Carnot Bay 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. Trip-scale surveyed footprint within Carnot Bay. An official Australian bay evaluated inside a compact 24-kilometre trip-planning window centred on the Composite Gazetteer feature. The public outline is limited to retained direct AusBathyTopo survey cells, not a legal or navigational boundary. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 69 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Here's the year, species by species, as the scoring engine sees it.
Drawn out, this is 63,264 acres of water rimmed by 55.2 miles of bank. Index 1.6 on the shoreline: a few honest points and pockets, nothing labyrinthine. 18% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Call it 18.3 mi long by 11.1 mi wide at the broadest reach. For a second option, King Sound - Sector 29 lies 19 mi northeast.
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.
Come spring, look for barramundi tight to the bank in 2 to 18 ft. Through summer count on 2 to 18 ft; the winter hold is 11 to 35 ft. Start at Sharp break. It's a drop-off holding about 22 ft of water and rates good come fall. Prime time lands in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 18 ft | dawn & dusk | open water | see map |
| Summer | 2 to 18 ft | dawn & dusk | open water | see map |
| Fall | 2 to 25 ft | dawn & dusk | Sharp break (22 ft) | see map |
| Winter | 11 to 35 ft | midday | Sharp break (22 ft) | see map |
When the water first warms, golden snapper slide up into 8 to 35 ft. There's no big seasonal slide here — summer means 8 to 35 ft, winter 18 to 69 ft. If you only fish one area, make it Sharp break: a drop-off around 51 ft that scores good in fall. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | Shoreline point (25 ft) | see map |
| Summer | 8 to 35 ft | dawn & dusk | Shoreline point (25 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Sharp break (51 ft) | see map |
| Winter | 18 to 69 ft | midday | Sharp break (51 ft) | see map |
Start shallow in spring: black jewfish sit in 8 to 35 ft that time of year. They don't go far with the seasons — 8 to 35 ft covers summer, 16 to 69 ft covers winter. The spot to know is Deepest basin, a deep basin in about 67 ft of water that rates prime for black jewfish in winter. Warm-month bites cluster around early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | Shoreline point (25 ft) | see map |
| Summer | 8 to 35 ft | dawn & dusk | Shoreline point (25 ft) | see map |
| Fall | 8 to 63 ft | dawn & dusk | Deepest basin (67 ft) | see map |
| Winter | 16 to 69 ft | midday | Deepest basin (67 ft) | see map |
Come spring, look for king threadfin tight to the bank in 2 to 16 ft. Through summer count on 2 to 16 ft; the winter hold is 10 to 35 ft. Start at Shallow measured flat. It's a feeding flat holding about 5 ft of water and rates prime come spring. Prime time lands in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 16 ft | dawn & dusk | Shallow measured flat (5 ft) | see map |
| Summer | 2 to 16 ft | dawn & dusk | Shallow measured flat (5 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Shallow measured flat (5 ft) | see map |
| Winter | 10 to 35 ft | midday | Sharp break (22 ft) | see map |
In spring, queenfish run shallow here, mostly 3 to 25 ft. Summer keeps them at 3 to 25 ft, and they winter in 15 to 55 ft. Fall queenfish concentrate at Sharp break, a prime-rated drop-off around 22 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 25 ft | dawn & dusk | Shoreline point (25 ft) | see map |
| Summer | 3 to 25 ft | dawn & dusk | Shoreline point (25 ft) | see map |
| Fall | 3 to 39 ft | dawn & dusk | Sharp break (22 ft) | see map |
| Winter | 15 to 55 ft | midday | Sharp break (51 ft) | see map |
Come spring, look for giant trevally tight to the bank in 4 to 30 ft. Through summer count on 4 to 30 ft; the winter hold is 16 to 69 ft. Start at Shoreline point. It's a point holding about 25 ft of water and rates prime come spring. Prime time lands in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Shoreline point (25 ft) | see map |
| Summer | 4 to 30 ft | dawn & dusk | Shoreline point (25 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (51 ft) | see map |
| Winter | 16 to 69 ft | midday | Sharp break (51 ft) | see map |
Carnot Bay also holds mangrove jack (2 to 18 ft in summer), narrow-barred spanish mackerel (8 to 45 ft in summer), coral trout (8 to 35 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Carnot Bay carries 15 mapped structure features, topping out (or rather bottoming out) at Deepest basin, about 67 ft down.
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 Carnot Bay 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 →
Carnot Bay is about 69 ft (21 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 Carnot Bay. 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 67 ft of water that rates prime for black jewfish in winter. Every other rated spot, per species and season, is on the map above.
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 Carnot Bay 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 29 19 mi · King Sound - Sector 22 27 mi · King Sound - Sector 23 41 mi · King Sound - Sector 16 48 mi · Roebuck Bay - North 55 mi · King Sound - Sector 17 64 mi · King Sound - Sector 25 65 mi · Roebuck Bay - Central 65 mi · King Sound - Sector 10 70 mi · King Sound - Sector 32 70 mi · King Sound - Sector 11 78 mi · King Sound - Sector 40 83 mi
See how Carnot Bay 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.