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24,540-acre Geographe Bay. Sector 10 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 10 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 62 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What follows comes from the same scoring engine that paints the spots above.
On the chart, Geographe Bay - Sector 10 draws 24,540 acres inside 27.6 miles of shoreline. At index 1.3 the outline is almost a bowl — read the depth changes, not the shoreline. Littoral water — the productive band under ~15 ft — makes up 22% of this chart. Figure 10.8 mi of water from one end to the other, 5.2 mi at the beam. For a second option, Geographe Bay - Sector 06 lies 6 mi northwest.
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.
The spring pattern is a shallow one: mulloway in 5 to 30 ft. Midsummer fish sit out in 9 to 62 ft before dropping to 11 to 62 ft for winter. The spot to know is Deepest basin, a deep basin in about 62 ft of water that rates prime for mulloway in summer. Plan around early morning and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 30 ft | dawn & dusk | Sharp break (28 ft) | see map |
| Summer | 9 to 62 ft | dawn & dusk | Deepest basin (62 ft) | see map |
| Fall | 4 to 62 ft | dawn & dusk | Deepest basin (62 ft) | see map |
| Winter | 11 to 62 ft | midday | Deepest basin (62 ft) | see map |
Spring puts yellowtail kingfish in skinny water — 8 to 45 ft is the zone. Warm water sends them out to 10 to 62 ft; cold water stacks them in 13 to 62 ft. Shoreline point is the standout, a point at roughly 10 ft, rated prime for spring yellowtail kingfish. 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 | Shoreline point (10 ft) | see map |
| Summer | 10 to 62 ft | dawn & dusk | Sharp break (62 ft) | see map |
| Fall | 5 to 62 ft | dawn & dusk | Sharp break (62 ft) | see map |
| Winter | 13 to 62 ft | midday | Sharp break (62 ft) | see map |
Spring tailor on Geographe Bay - Sector 10 hold shallow, usually 3 to 25 ft. They move out to 10 to 62 ft in summer and finish the year down in 14 to 62 ft. Put Sharp break first on the milk run — a drop-off near 62 ft that grades prime for summer. The feeding windows run early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Shoreline point (10 ft) | see map |
| Summer | 10 to 62 ft | dawn & dusk | Sharp break (62 ft) | see map |
| Fall | 3 to 46 ft | dawn & dusk | Sharp break (28 ft) | see map |
| Winter | 14 to 62 ft | midday | Sharp break (62 ft) | see map |
Come spring, look for silver trevally tight to the bank in 4 to 30 ft. They move out to 11 to 62 ft in summer and finish the year down in 14 to 62 ft. If you only fish one area, make it Sharp break: a drop-off around 62 ft that scores prime in summer. Best bite is 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 | 11 to 62 ft | dawn & dusk | Sharp break (62 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (49 ft) | see map |
| Winter | 14 to 62 ft | midday | Sharp break (62 ft) | see map |
Come spring, look for gummy shark tight to the bank in 8 to 40 ft. They move out to 9 to 62 ft in summer and finish the year down in 8 to 40 ft. If you only fish one area, make it Deepest basin: a deep basin around 62 ft that scores prime in summer. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 40 ft | dawn & dusk | Sharp break (28 ft) | see map |
| Summer | 9 to 62 ft | dawn & dusk | Deepest basin (62 ft) | see map |
| Fall | 6 to 62 ft | dawn & dusk | Deepest basin (62 ft) | see map |
| Winter | 8 to 40 ft | dawn | Sharp break (28 ft) | see map |
In spring, king george whiting run shallow here, mostly 3 to 18 ft. Midsummer fish sit out in 8 to 45 ft before dropping to 11 to 45 ft for winter. Summer king george whiting concentrate at Sharp break, a good-rated drop-off around 28 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 18 ft | dawn & dusk | Shoreline point (10 ft) | see map |
| Summer | 8 to 45 ft | dawn & dusk | Sharp break (28 ft) | see map |
| Fall | 3 to 31 ft | dawn & dusk | Sharp break (28 ft) | see map |
| Winter | 11 to 45 ft | midday | Sharp break (28 ft) | see map |
The chart marks 11 structure features on Geographe Bay - Sector 10; the deepest is Deepest basin at about 62 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 Geographe Bay - Sector 10 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 10 is about 62 ft (19 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 10. 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 62 ft of water that rates prime for mulloway in summer. Open the map above to see every rated spot for each 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 10 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 06 6 mi · Geographe Bay - Sector 11 8 mi · Geographe Bay - Sector 05 13 mi · Geographe Bay - Sector 09 15 mi · Geographe Bay - Sector 07 16 mi · Geographe Bay - Sector 08 25 mi · Geographe Bay - Sector 03 28 mi · Geographe Bay - Sector 13 29 mi · Geographe Bay - Sector 04 34 mi · Hamelin Bay - Northwest 38 mi · Hamelin Bay - Northeast 47 mi · Hamelin Bay - West 49 mi
See how Geographe Bay - Sector 10 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.