Salt water depth chart
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57,244-acre Prince Frederick Harbour 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 Prince Frederick Harbour. An official Australian harbour 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 262 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The season-by-season read for each species follows, from the map's own numbers.
The drawn water covers 57,245 acres wrapped in 76.2 miles of bank. That shoreline is heavily fingered (development index 2.3) — bays, points and pockets everywhere, which multiplies the fishable edge. About 14% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Call it 16 mi long by 10 mi wide at the broadest reach. If the bite dies, Hanover Bay is 35 mi to the southwest.
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.
Start shallow in spring: barramundi sit in 2 to 18 ft that time of year. They don't go far with the seasons — 2 to 18 ft covers summer, 11 to 35 ft covers winter. Top water on the chart: Offshore hump, an offshore hump in the 22 ft range, good in fall. 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 | Shoreline point (15 ft) | see map |
| Summer | 2 to 18 ft | dawn & dusk | Shoreline point (15 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Offshore hump (22 ft) | see map |
| Winter | 11 to 35 ft | midday | Offshore hump (22 ft) | see map |
The spring pattern is a shallow one: golden snapper in 8 to 35 ft. The depth story barely changes: 8 to 35 ft through summer, 21 to 80 ft in winter. The spot to know is Sharp break, a drop-off in about 70 ft of water that rates good for golden snapper in winter. 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 | Shoreline point (15 ft) | see map |
| Summer | 8 to 35 ft | dawn & dusk | Shoreline point (15 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Offshore hump (22 ft) | see map |
| Winter | 21 to 80 ft | midday | Sharp break (70 ft) | see map |
Come spring, look for black jewfish tight to the bank in 8 to 35 ft. Through summer count on 8 to 35 ft; the winter hold is 21 to 90 ft. If you only fish one area, make it Sharp break: a drop-off around 70 ft that scores good in winter. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | Shoreline point (15 ft) | see map |
| Summer | 8 to 35 ft | dawn & dusk | Shoreline point (15 ft) | see map |
| Fall | 8 to 63 ft | dawn & dusk | Sharp break (70 ft) | see map |
| Winter | 21 to 90 ft | midday | Sharp break (70 ft) | see map |
Start shallow in spring: king threadfin sit in 2 to 16 ft that time of year. They don't go far with the seasons — 2 to 16 ft covers summer, 10 to 35 ft covers winter. Top water on the chart: Shallow measured flat, a feeding flat in the 6 ft range, prime in spring. 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 (6 ft) | see map |
| Summer | 2 to 16 ft | dawn & dusk | Shallow measured flat (6 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Shallow measured flat (6 ft) | see map |
| Winter | 10 to 35 ft | midday | Offshore hump (22 ft) | see map |
Spring queenfish on Prince Frederick Harbour hold shallow, usually 3 to 25 ft. Depth-wise the year is flat: 3 to 25 ft in summer, 15 to 55 ft once it turns cold. The chart's best answer is Shoreline point — point, 15 ft, good for spring. Prime time lands in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Shoreline point (15 ft) | see map |
| Summer | 3 to 25 ft | dawn & dusk | Shoreline point (15 ft) | see map |
| Fall | 3 to 39 ft | dawn & dusk | Shallow measured flat (6 ft) | see map |
| Winter | 15 to 55 ft | midday | Offshore hump (22 ft) | see map |
Start shallow in spring: giant trevally sit in 4 to 30 ft that time of year. They don't go far with the seasons — 4 to 30 ft covers summer, 18 to 80 ft covers winter. Top water on the chart: Shoreline point, a point in the 15 ft range, prime in spring. Fish it in early morning and the evening and you'll meet the bite.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Shoreline point (15 ft) | see map |
| Summer | 4 to 30 ft | dawn & dusk | Shoreline point (15 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (70 ft) | see map |
| Winter | 18 to 80 ft | midday | Sharp break (70 ft) | see map |
Prince Frederick Harbour 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.
16 pieces of structure are mapped here — Sharp break, around 108 ft, is the deepest of them.
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 Prince Frederick Harbour 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 →
Prince Frederick Harbour is about 262 ft (80 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 Prince Frederick Harbour. 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 6 ft of water that rates prime for king threadfin in spring. The map above holds the full rated-spot list for every 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 Prince Frederick Harbour 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.
Hanover Bay 35 mi · Freshwater Cove 82 mi · Vansittart Bay 99 mi · King Sound - Sector 07 124 mi · King Sound - Sector 14 131 mi · King Sound - Sector 06 134 mi · King Sound - Sector 27 160 mi · King Sound - Sector 28 161 mi · King Sound - Sector 35 169 mi · King Sound - Sector 11 171 mi · King Sound - Sector 34 177 mi · King Sound - Sector 10 180 mi
See how Prince Frederick Harbour 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.