Salt water depth chart
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11,491-acre Roebuck Bay. North 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. North trip-scale surveyed footprint within Roebuck Bay. Broome's macrotidal bay, including mangrove creeks, vast flats, channels and exposed entrance contours. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 79 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Below is the species-by-species picture, pulled from the same data the map uses.
Drawn out, this is 11,492 acres of water rimmed by 25 miles of bank. Index 1.7 on the shoreline: a few honest points and pockets, nothing labyrinthine. Roughly 10% of the water is 15 ft or less, the band where the food chain lives. End to end it runs roughly 9.2 mi, about 5.1 mi across. For a second option, Roebuck Bay - Central lies 12 mi southeast.
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 |
|---|---|---|
| golden snapper (Golden Snapper) | official species listing | — |
| black jewfish (Black Jewfish) | 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 golden snapper tight to the bank in 8 to 35 ft. Through summer count on 8 to 35 ft; the winter hold is 21 to 79 ft. Start at Sharp break. It's a drop-off holding about 46 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 | 8 to 35 ft | dawn & dusk | open water | see map |
| Summer | 8 to 35 ft | dawn & dusk | open water | see map |
| Fall | 8 to 56 ft | dawn & dusk | Sharp break (46 ft) | see map |
| Winter | 21 to 79 ft | midday | Sharp break (46 ft) | see map |
The spring pattern is a shallow one: black jewfish in 8 to 35 ft. The depth story barely changes: 8 to 35 ft through summer, 18 to 79 ft in winter. Top water on the chart: Deepest basin, a deep basin in the 78 ft range, prime in winter. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | open water | see map |
| Summer | 8 to 35 ft | dawn & dusk | open water | see map |
| Fall | 8 to 63 ft | dawn & dusk | Sharp break (46 ft) | see map |
| Winter | 18 to 79 ft | midday | Deepest basin (78 ft) | see map |
The spring pattern is a shallow one: narrow-barred spanish mackerel in 8 to 45 ft. The depth story barely changes: 8 to 45 ft through summer, 18 to 79 ft in winter. The spot to know is Sharp break, a drop-off in about 46 ft of water that rates prime for narrow-barred spanish mackerel in fall. Plan around early morning and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 45 ft | dawn & dusk | Sharp break (46 ft) | see map |
| Summer | 8 to 45 ft | dawn & dusk | Sharp break (46 ft) | see map |
| Fall | 8 to 79 ft | dawn & dusk | Sharp break (46 ft) | see map |
| Winter | 18 to 79 ft | midday | Sharp break (46 ft) | see map |
Spring puts coral trout in skinny water — 8 to 35 ft is the zone. Summer fish stay in 8 to 35 ft, and winter fish hold in 17 to 79 ft. Sharp break is the standout, a drop-off at roughly 46 ft, rated prime for fall coral trout. Plan around early morning and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | open water | see map |
| Summer | 8 to 35 ft | dawn & dusk | open water | see map |
| Fall | 8 to 70 ft | dawn & dusk | Sharp break (46 ft) | see map |
| Winter | 17 to 79 ft | midday | Sharp break (46 ft) | see map |
The chart marks 4 structure features on Roebuck Bay - North; the deepest is Deepest basin at about 78 ft.
Access data: Western Australia Department of Transport Public Boat Ramps (DOT-033). Confirm conditions and fees locally before you launch.
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 Roebuck Bay - North 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 →
Roebuck Bay - North is about 79 ft (24 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 golden snapper, black jewfish, narrow-barred spanish mackerel, coral trout roster for Roebuck Bay - North. 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 78 ft of water that rates prime for black jewfish in winter. Scroll up to the map for the complete spot list by species and season.
For golden snapper, 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 Roebuck Bay - North 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.
Roebuck Bay - Central 12 mi · Roebuck Bay - Southwest 34 mi · Carnot Bay 55 mi · Lagrange Bay 60 mi · King Sound - Sector 29 69 mi · King Sound - Sector 22 77 mi · Desault Bay 85 mi · King Sound - Sector 23 87 mi · King Sound - Sector 32 96 mi · King Sound - Sector 40 96 mi · King Sound - Sector 16 96 mi · King Sound - Sector 25 99 mi
See how Roebuck Bay - North stacks up: best golden snapper lakes in Western Australia · best black jewfish lakes in Western Australia · best coral trout lakes in Western Australia · best narrow-barred spanish mackerel 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.