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57,417-acre Hamelin Bay. Northwest 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. Northwest trip-scale surveyed footprint within Hamelin Bay. A compact southwest bay with reefs, sand, historic jetty structure and exposed Indian Ocean swell. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 165 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.
Traced from the shoreline, Hamelin Bay - Northwest runs 57,422 acres with 49.8 miles of edge. The shoreline is moderately structured (index 1.5) — enough points and pockets to pattern. Littoral water — the productive band under ~15 ft — makes up 3% of this chart. Call it 13.5 mi long by 12.5 mi wide at the broadest reach. Closest neighbour on DepthScout: Hamelin Bay - Northeast, 10 mi south of here.
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 |
|---|---|---|
| snapper (Australasian Snapper) | official species listing | — |
| sand flathead (Sand Flathead) | official species listing | — |
| Australian salmon (Australian Salmon) | official species listing | — |
| silver trevally (Silver Trevally) | official species listing | — |
| gummy shark (Gummy Shark) | official species listing | — |
| yellowtail kingfish (Yellowtail Kingfish) | official species listing | — |
Official species-evidence source.
In spring, australasian snapper run shallow here, mostly 6 to 35 ft. Summer pushes them deeper, 16 to 120 ft, and winter fish settle into 21 to 120 ft. Sharp break is the standout, a drop-off at roughly 114 ft, rated prime for summer australasian snapper. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 6 to 35 ft | dawn & dusk | Shoreline point (39 ft) | see map |
| Summer | 16 to 120 ft | dawn & dusk | Sharp break (114 ft) | see map |
| Fall | 6 to 84 ft | dawn & dusk | Sharp break (69 ft) | see map |
| Winter | 21 to 120 ft | midday | Sharp break (114 ft) | see map |
Spring puts sand flathead in skinny water — 8 to 35 ft is the zone. Warm water sends them out to 16 to 80 ft; cold water stacks them in 8 to 35 ft. Sharp break is the standout, a drop-off at roughly 69 ft, rated good for summer sand flathead. 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 | 16 to 80 ft | dawn & dusk | Sharp break (69 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Offshore hump (24 ft) | see map |
| Winter | 8 to 35 ft | dawn | open water | see map |
When the water first warms, australian salmon slide up into 4 to 30 ft. Summer is a 14 to 80 ft game here, winter a 4 to 30 ft one. Start at Sharp break. It's a drop-off holding about 69 ft of water and rates prime come summer. The feeding windows run early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | open water | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (69 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (69 ft) | see map |
| Winter | 4 to 30 ft | dawn | open water | see map |
Spring silver trevally on Hamelin Bay - Northwest hold shallow, usually 4 to 30 ft. By summer they slide out to 14 to 80 ft, and by winter most fish are in 18 to 80 ft. The chart's best answer is Sharp break — drop-off, 69 ft, prime for summer. 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 | open water | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (69 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (69 ft) | see map |
| Winter | 18 to 80 ft | midday | Sharp break (69 ft) | see map |
Spring gummy shark on Hamelin Bay - Northwest hold shallow, usually 8 to 40 ft. By summer they slide out to 18 to 120 ft, and by winter most fish are in 8 to 40 ft. The chart's best answer is Sharp break — drop-off, 114 ft, prime for summer. Prime time lands in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 40 ft | dawn & dusk | Shoreline point (39 ft) | see map |
| Summer | 18 to 120 ft | dawn & dusk | Sharp break (114 ft) | see map |
| Fall | 8 to 84 ft | dawn & dusk | Sharp break (69 ft) | see map |
| Winter | 8 to 40 ft | dawn | Shoreline point (39 ft) | see map |
Start shallow in spring: yellowtail kingfish sit in 8 to 45 ft that time of year. Summer pushes them deeper, 20 to 130 ft, and winter fish settle into 27 to 130 ft. The spot to know is Shoreline point, a point in about 39 ft of water that rates prime for yellowtail kingfish in spring. Warm-month bites cluster around early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 45 ft | dawn & dusk | Shoreline point (39 ft) | see map |
| Summer | 20 to 130 ft | dawn & dusk | Sharp break (114 ft) | see map |
| Fall | 8 to 91 ft | dawn & dusk | Sharp break (69 ft) | see map |
| Winter | 27 to 130 ft | midday | Sharp break (114 ft) | see map |
Structure-wise the chart holds 11 features, led in depth by Deepest basin at roughly 165 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 Hamelin Bay - Northwest 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 →
Hamelin Bay - Northwest is about 165 ft (50 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 australasian snapper, sand flathead, australian salmon, silver trevally, gummy shark, yellowtail kingfish roster for Hamelin Bay - Northwest. 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.
Sharp break is the top-rated area: a drop-off in about 114 ft of water that rates prime for australasian snapper in summer. The map above holds the full rated-spot list for every species and season.
For australasian 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 Hamelin Bay - Northwest 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.
Hamelin Bay - Northeast 10 mi · Geographe Bay - Sector 13 12 mi · Hamelin Bay - West 15 mi · Geographe Bay - Sector 09 29 mi · Geographe Bay - Sector 10 38 mi · Geographe Bay - Sector 06 40 mi · Geographe Bay - Sector 05 41 mi · Geographe Bay - Sector 11 42 mi · Geographe Bay - Sector 07 52 mi · Geographe Bay - Sector 08 60 mi · Geographe Bay - Sector 03 66 mi · Geographe Bay - Sector 04 71 mi
See how Hamelin Bay - Northwest stacks up: best australasian snapper lakes in Western Australia · best yellowtail kingfish lakes in Western Australia · best sand flathead lakes in Western Australia · best silver trevally 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.