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19,498-acre Geographe Bay. Sector 11 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 11 trip-scale surveyed footprint within Geographe Bay. A broad southwest-facing bay with long sand flats, seagrass, artificial structure and headland transitions. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 54 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Species by species, here's what the data says the year looks like.
The drawn water covers 19,498 acres wrapped in 24.9 miles of bank. Its 1.3 shoreline index means few bank features; the contours below do the pattern work. About 27% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Tip to tip the water measures near 9.9 mi with a 4.9-mi widest point. Its nearest charted neighbour, Geographe Bay - Sector 10, is 8 mi to the west.
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 |
|---|---|---|
| mulloway (Mulloway) | official species listing | — |
| yellowtail kingfish (Yellowtail Kingfish) | official species listing | — |
| tailor (Tailor) | official species listing | — |
| silver trevally (Silver Trevally) | official species listing | — |
| gummy shark (Gummy Shark) | official species listing | — |
| King George whiting (King George Whiting) | official species listing | — |
Official species-evidence source.
When the water first warms, mulloway slide up into 5 to 30 ft. By summer they slide out to 8 to 54 ft, and by winter most fish are in 10 to 54 ft. If you only fish one area, make it Sharp break: a drop-off around 18 ft that scores good in summer. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 30 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Summer | 8 to 54 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Fall | 4 to 54 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Winter | 10 to 54 ft | midday | Sharp break (18 ft) | see map |
Come spring, look for yellowtail kingfish tight to the bank in 8 to 45 ft. They move out to 8 to 54 ft in summer and finish the year down in 11 to 54 ft. If you only fish one area, make it Shoreline point: a point around 10 ft that scores prime in spring. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 45 ft | dawn & dusk | Shoreline point (10 ft) | see map |
| Summer | 8 to 54 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Fall | 5 to 54 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Winter | 11 to 54 ft | midday | Sharp break (18 ft) | see map |
Start shallow in spring: tailor sit in 3 to 25 ft that time of year. Warm water sends them out to 9 to 54 ft; cold water stacks them in 12 to 54 ft. Top water on the chart: Sharp break, a drop-off in the 18 ft range, prime in summer. 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 (10 ft) | see map |
| Summer | 9 to 54 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Fall | 3 to 46 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Winter | 12 to 54 ft | midday | Sharp break (18 ft) | see map |
Start shallow in spring: silver trevally sit in 4 to 30 ft that time of year. Summer pushes them deeper, 9 to 54 ft, and winter fish settle into 12 to 54 ft. The spot to know is Sharp break, a drop-off in about 18 ft of water that rates prime for silver trevally in summer. Warm-month bites cluster around early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Shoreline point (10 ft) | see map |
| Summer | 9 to 54 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Fall | 4 to 54 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Winter | 12 to 54 ft | midday | Sharp break (18 ft) | see map |
Start shallow in spring: gummy shark sit in 8 to 40 ft that time of year. Summer pushes them deeper, 8 to 54 ft, and winter fish settle into 8 to 40 ft. The spot to know is Sharp break, a drop-off in about 18 ft of water that rates prime for gummy shark in summer. Warm-month bites cluster around early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 40 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Summer | 8 to 54 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Fall | 5 to 54 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Winter | 8 to 40 ft | dawn | Sharp break (18 ft) | see map |
When the water first warms, king george whiting slide up into 3 to 18 ft. Summer is an 8 to 45 ft game here, winter an 11 to 45 ft one. Start at Sharp break. It's a drop-off holding about 18 ft of water and rates good come summer. The feeding windows run early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 18 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Summer | 8 to 45 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Fall | 3 to 31 ft | dawn & dusk | Sharp break (18 ft) | see map |
| Winter | 11 to 45 ft | midday | Sharp break (18 ft) | see map |
10 pieces of structure are mapped here — Sharp break, around 43 ft, is the deepest of them.
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 Geographe Bay - Sector 11 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 →
Geographe Bay - Sector 11 is about 54 ft (16 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 mulloway, yellowtail kingfish, tailor, silver trevally, gummy shark, king george whiting roster for Geographe Bay - Sector 11. 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.
Shoreline point is the top-rated area: a point in about 10 ft of water that rates prime for yellowtail kingfish in spring. The map above holds the full rated-spot list for every species and season.
For mulloway, 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 Geographe Bay - Sector 11 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.
Geographe Bay - Sector 10 8 mi · Geographe Bay - Sector 07 10 mi · Geographe Bay - Sector 06 13 mi · Geographe Bay - Sector 08 19 mi · Geographe Bay - Sector 05 21 mi · Geographe Bay - Sector 09 22 mi · Geographe Bay - Sector 03 25 mi · Geographe Bay - Sector 04 29 mi · Geographe Bay - Sector 13 34 mi · Hamelin Bay - Northwest 42 mi · Hamelin Bay - Northeast 51 mi · Hamelin Bay - West 51 mi
See how Geographe Bay - Sector 11 stacks up: best mulloway lakes in Western Australia · best yellowtail kingfish lakes in Western Australia · best king george whiting lakes in Western Australia · best tailor 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.