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18,148-acre Portland 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 Portland Bay. A southwest Victorian bay with harbor walls, reefs, beach contours and exposed Southern Ocean approaches. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 80 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.
The drawn water covers 18,147 acres wrapped in 26.7 miles of bank. Nearly circular (index 1.4), so the story is the bottom, not the bank. The shallow band under 15 ft claims about 17% of the surface — that's where the groceries are. Tip to tip the water measures near 10.4 mi with a 4.2-mi widest point. If the bite dies, Portland Bay - West is 7 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 |
|---|---|---|
| snapper (Australasian Snapper) | official species listing | — |
| King George whiting (King George Whiting) | official species listing | — |
| sand flathead (Sand Flathead) | official species listing | — |
| black bream (Black Bream) | 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.
Come spring, look for australasian snapper tight to the bank in 6 to 35 ft. They move out to 11 to 80 ft in summer and finish the year down in 14 to 80 ft. If you only fish one area, make it Sharp break: a drop-off around 21 ft that scores prime in summer. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 6 to 35 ft | dawn & dusk | Shoreline point (14 ft) | see map |
| Summer | 11 to 80 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Fall | 6 to 80 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Winter | 14 to 80 ft | midday | Sharp break (21 ft) | see map |
Come spring, look for king george whiting tight to the bank in 3 to 18 ft. Expect a summer slide to 8 to 45 ft, then a winter hold in 11 to 45 ft. Start at Sharp break. It's a drop-off holding about 21 ft of water and rates good come summer. Prime time lands in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 18 ft | dawn & dusk | Sharp break (15 ft) | see map |
| Summer | 8 to 45 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Fall | 3 to 31 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Winter | 11 to 45 ft | midday | Sharp break (21 ft) | see map |
Spring sand flathead on Portland Bay - North hold shallow, usually 8 to 35 ft. They move out to 16 to 80 ft in summer and finish the year down in 8 to 35 ft. Put Deepest basin first on the milk run — a deep basin near 77 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 | 8 to 35 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Summer | 16 to 80 ft | dawn & dusk | Deepest basin (77 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Winter | 8 to 35 ft | dawn | Sharp break (21 ft) | see map |
The spring pattern is a shallow one: black bream in 2 to 16 ft. Midsummer fish sit out in 7 to 35 ft before dropping to 2 to 16 ft for winter. The spot to know is Sharp break, a drop-off in about 21 ft of water that rates good for black bream in summer. Plan around early morning and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 16 ft | dawn & dusk | Sharp break (15 ft) | see map |
| Summer | 7 to 35 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Winter | 2 to 16 ft | dawn | Sharp break (15 ft) | see map |
Spring puts australian salmon in skinny water — 4 to 30 ft is the zone. As the season builds they drop to 14 to 80 ft, wintering in 4 to 30 ft. Summer australian salmon concentrate at Sharp break, a prime-rated drop-off around 21 ft. 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 (14 ft) | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Winter | 4 to 30 ft | dawn | Shoreline point (14 ft) | see map |
The spring pattern is a shallow one: silver trevally in 4 to 30 ft. Midsummer fish sit out in 14 to 80 ft before dropping to 18 to 80 ft for winter. The spot to know is Sharp break, a drop-off in about 21 ft of water that rates prime for silver trevally in summer. Plan around early morning and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Shoreline point (14 ft) | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (21 ft) | see map |
| Winter | 18 to 80 ft | midday | Sharp break (21 ft) | see map |
Portland Bay - North also holds gummy shark (12 to 80 ft in summer), yellowtail kingfish (12 to 80 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Count 9 structure marks on this chart. The deepest, Deepest basin, sits near 77 ft.
No facility from the cited Victorian recreational boating facilities 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://discover.data.vic.gov.au/dataset/recreational-boating-facilities
Private land and private launches need the owner's permission — please ask first.
Season dates, license requirements, and size and bag limits for Victoria waters are set by the Victorian Fisheries Authority (current recreational-fishing guide) — and special regulations can apply to Portland Bay - North specifically, so confirm the current rules before you fish. Check the live Victorian recreational-fishing guide and licence requirements before every trip. Size and possession limits, closed seasons and waters, marine parks, protected species, permitted equipment and local port or council directions may all apply. A directly measured bathymetry footprint, fishing-spot marker or nearby access lead is planning context only; it never grants fishing, retention, entry, parking or launching permission.
Check the official Victoria fishing regulations →
Victorian Fisheries Authority →
Check special-area and water-specific rules →
Portland Bay - North is about 80 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 Victorian Fisheries Authority regional evidence informs the australasian snapper, king george whiting, sand flathead, black bream, australian salmon, silver trevally, gummy shark, yellowtail kingfish roster for Portland 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.
Sharp break is the top-rated area: a drop-off in about 21 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 Portland Bay - North is regulated by the Victorian Fisheries Authority (current recreational-fishing guide). Check the official Victoria regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Portland Bay - West 7 mi · Portland Bay - Northeast 13 mi · Warrnambool Harbour 43 mi · Curdies Inlet 68 mi · Devils Kitchen 87 mi · Crayfish Bay 107 mi · Port Phillip - West 157 mi · Port Phillip - Central 168 mi · Port Phillip - North 173 mi · Port Phillip - Southeast 178 mi · Port Phillip - Northeast 178 mi · Port Phillip - East 180 mi
Browse all Victoria 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.