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11,420-acre Great Oyster 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 Great Oyster Bay. A large east-coast bay between Freycinet and the mainland, with beaches, reef points and deep central water. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 245 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.
The outline encloses 11,419 acres, worked by 57.6 miles of shoreline. The 3.8 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. About 11% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Figure 14.5 mi of water from one end to the other, 5.1 mi at the beam. Great Oyster Bay - Sector 10 sits 10 mi southwest — 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 |
|---|---|---|
| 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.
When the water first warms, sand flathead slide up into 8 to 35 ft. By summer they slide out to 16 to 80 ft, and by winter most fish are in 8 to 35 ft. In summer the feeding windows fall in early morning and the evening.
| 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 | open water | see map |
| Fall | 8 to 56 ft | dawn & dusk | open water | see map |
| Winter | 8 to 35 ft | dawn | open water | see map |
Spring puts black bream in skinny water — 2 to 16 ft is the zone. As the season builds they drop to 7 to 35 ft, wintering in 2 to 16 ft. Warm-month bites cluster around early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 16 ft | dawn & dusk | open water | see map |
| Summer | 7 to 35 ft | dawn & dusk | open water | see map |
| Fall | 2 to 25 ft | dawn & dusk | open water | see map |
| Winter | 2 to 16 ft | dawn | open water | see map |
Start shallow in spring: australian salmon sit in 4 to 30 ft that time of year. Warm water sends them out to 14 to 80 ft; cold water stacks them in 4 to 30 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 | open water | see map |
| Summer | 14 to 80 ft | dawn & dusk | open water | see map |
| Fall | 4 to 56 ft | dawn & dusk | open water | see map |
| Winter | 4 to 30 ft | dawn | open water | see map |
Spring puts silver trevally in skinny water — 4 to 30 ft is the zone. As the season builds they drop to 14 to 80 ft, wintering in 18 to 80 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 | open water | see map |
| Summer | 14 to 80 ft | dawn & dusk | open water | see map |
| Fall | 4 to 56 ft | dawn & dusk | open water | see map |
| Winter | 18 to 80 ft | midday | open water | see map |
Spring puts gummy shark in skinny water — 8 to 40 ft is the zone. As the season builds they drop to 18 to 120 ft, wintering in 8 to 40 ft. Summer gummy shark concentrate at Sharp break, a good-rated drop-off around 149 ft. 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 | open water | see map |
| Summer | 18 to 120 ft | dawn & dusk | Sharp break (149 ft) | see map |
| Fall | 8 to 84 ft | dawn & dusk | open water | see map |
| Winter | 8 to 40 ft | dawn | open water | see map |
Early season yellowtail kingfish use the shallows, holding in 8 to 45 ft. Summer is a 20 to 130 ft game here, winter a 27 to 130 ft one. The chart's best answer is Shoreline point — point, 44 ft, prime for 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 (44 ft) | see map |
| Summer | 20 to 130 ft | dawn & dusk | Sharp break (149 ft) | see map |
| Fall | 8 to 91 ft | dawn & dusk | open water | see map |
| Winter | 27 to 130 ft | midday | Sharp break (149 ft) | see map |
Structure-wise the chart holds 4 features, led in depth by Deepest basin at roughly 172 ft.
No facility from the cited Marine and Safety Tasmania 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://mast.tas.gov.au/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 Tasmania waters are set by the Fishing Tasmania (current recreational sea-fishing rules) — and special regulations can apply to Great Oyster Bay - Sector 11 specifically, so confirm the current rules before you fish. Check Fishing Tasmania's live sea-fishing rules and licensing pages before every trip. Current species limits, licences for particular fisheries, seasonal and area closures, marine reserves, protected species, gear controls and biosecurity measures may apply. A directly measured depth footprint, fishing-spot marker or access lead is planning context only and never grants permission to fish, keep catch, enter private or port land, park or launch.
Check the official Tasmania fishing regulations →
Fishing Tasmania species and licence information →
Check special-area and water-specific rules →
Great Oyster Bay - Sector 11 is about 245 ft (75 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 Tasmania Department of Natural Resources and Environment regional evidence informs the sand flathead, black bream, australian salmon, silver trevally, gummy shark, yellowtail kingfish roster for Great Oyster 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 44 ft of water that rates prime for yellowtail kingfish in spring. Open the map above to see every rated spot for each species and season.
For sand flathead, 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 Great Oyster Bay - Sector 11 is regulated by the Fishing Tasmania (current recreational sea-fishing rules). Check the official Tasmania regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Great Oyster Bay - Sector 10 10 mi · Great Oyster Bay - Sector 08 15 mi · Great Oyster Bay - Sector 09 18 mi · Storm Bay - Sector 04 21 mi · Great Oyster Bay - Sector 05 25 mi · Great Oyster Bay - Sector 06 30 mi · Frederick Henry Bay - Northwest 47 mi · Storm Bay - Sector 06 51 mi · Storm Bay - Sector 11 56 mi · Storm Bay - Sector 10 59 mi · Storm Bay - Sector 14 74 mi · Great Musselroe Bay - West 112 mi
Browse all Tasmania 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.