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14,045-acre Isman Inlet 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 Isman Inlet. An official Australian inlet 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 104 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Every species below gets its seasonal read from the same numbers driving the chart.
The outline encloses 14,045 acres, worked by 25.8 miles of shoreline. A middling shoreline index (1.6) gives it some bays to work without being a maze. 15% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Figure 10.3 mi of water from one end to the other, 3.7 mi at the beam. Batemans Bay - North sits 131 mi north — the closest neighbouring chart.
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.
Spring australasian snapper on Isman Inlet hold shallow, usually 6 to 35 ft. They move out to 14 to 104 ft in summer and finish the year down in 18 to 104 ft. Put Sharp break first on the milk run — a drop-off near 29 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 | 6 to 35 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Summer | 14 to 104 ft | dawn & dusk | Sharp break (29 ft) | see map |
| Fall | 6 to 84 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Winter | 18 to 104 ft | midday | Sharp break (29 ft) | see map |
Early season king george whiting use the shallows, holding in 3 to 18 ft. Expect a summer slide to 8 to 45 ft, then a winter hold in 11 to 45 ft. Put Sharp break first on the milk run — a drop-off near 13 ft that grades good for summer. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 18 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Summer | 8 to 45 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Fall | 3 to 31 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Winter | 11 to 45 ft | midday | Sharp break (13 ft) | see map |
Come spring, look for sand flathead tight to the bank in 8 to 35 ft. They move out to 16 to 80 ft in summer and finish the year down in 8 to 35 ft. If you only fish one area, make it Sharp break: a drop-off around 29 ft that scores good in summer. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Summer | 16 to 80 ft | dawn & dusk | Sharp break (29 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Winter | 8 to 35 ft | dawn | Sharp break (13 ft) | see map |
In spring, black bream run shallow here, mostly 2 to 16 ft. Midsummer fish sit out in 7 to 35 ft before dropping to 2 to 16 ft for winter. Summer black bream concentrate at Sharp break, a good-rated drop-off around 13 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 | 2 to 16 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Summer | 7 to 35 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Winter | 2 to 16 ft | dawn | Sharp break (13 ft) | see map |
The spring pattern is a shallow one: australian salmon in 4 to 30 ft. As the season builds they drop to 14 to 80 ft, wintering in 4 to 30 ft. Top water on the chart: Sharp break, a drop-off in the 29 ft range, prime in summer. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (29 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Winter | 4 to 30 ft | dawn | Sharp break (13 ft) | see map |
In spring, silver trevally run shallow here, mostly 4 to 30 ft. Midsummer fish sit out in 14 to 80 ft before dropping to 18 to 80 ft for winter. Summer silver trevally concentrate at Sharp break, a prime-rated drop-off around 29 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 | 4 to 30 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (29 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (13 ft) | see map |
| Winter | 18 to 80 ft | midday | Sharp break (29 ft) | see map |
Isman Inlet also holds gummy shark (16 to 104 ft in summer), yellowtail kingfish (16 to 104 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Isman Inlet carries 6 mapped structure features, topping out (or rather bottoming out) at Deepest basin, about 97 ft down.
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 Isman Inlet 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 →
Isman Inlet is about 104 ft (32 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 Isman Inlet. 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 29 ft of water that rates prime for australasian snapper in summer. Every other rated spot, per species and season, is on the map above.
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 Isman Inlet 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.
Batemans Bay - North 131 mi, NSW · Blind Inlet 177 mi · Corner Inlet - Northeast 189 mi · Corner Inlet - East 198 mi · Gunters Bay 202 mi, TAS · Corner Inlet - North 202 mi · Corner Inlet - Central 206 mi · Corner Inlet - Northwest 209 mi · Burgess Bay 210 mi, TAS · Corner Inlet - West 217 mi · Maclaines Bay 223 mi, TAS · Great Musselroe Bay - North 232 mi, TAS
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.