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22,731-acre Great Oyster Bay. Sector 06 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 06 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 316 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What the data behind the map says about each species, season by season:
Great Oyster Bay - Sector 06 maps at 22,730 acres behind 73.8 miles of shoreline. An index of 3.5 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. Littoral water — the productive band under ~15 ft — makes up 13% of this chart. End to end it runs roughly 15.4 mi, about 8.8 mi across. Its nearest charted neighbour, Great Oyster Bay - Sector 05, is 9 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 |
|---|---|---|
| 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 sand flathead on Great Oyster Bay - Sector 06 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 Sharp break first on the milk run — a drop-off near 62 ft that grades good 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 (33 ft) | see map |
| Summer | 16 to 80 ft | dawn & dusk | Sharp break (62 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Sharp break (33 ft) | see map |
| Winter | 8 to 35 ft | dawn | Sharp break (33 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 33 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 | Shoreline point (5 ft) | see map |
| Summer | 7 to 35 ft | dawn & dusk | Sharp break (33 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Sharp break (25 ft) | see map |
| Winter | 2 to 16 ft | dawn | Shoreline point (5 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 62 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 (5 ft) | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (62 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (33 ft) | see map |
| Winter | 4 to 30 ft | dawn | Shoreline point (5 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 62 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 (5 ft) | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (62 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (33 ft) | see map |
| Winter | 18 to 80 ft | midday | Sharp break (62 ft) | see map |
The spring pattern is a shallow one: gummy shark in 8 to 40 ft. Midsummer fish sit out in 18 to 120 ft before dropping to 8 to 40 ft for winter. The spot to know is Sharp break, a drop-off in about 62 ft of water that rates prime for gummy shark in summer. Plan around early morning and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 40 ft | dawn & dusk | Sharp break (33 ft) | see map |
| Summer | 18 to 120 ft | dawn & dusk | Sharp break (62 ft) | see map |
| Fall | 8 to 84 ft | dawn & dusk | Sharp break (62 ft) | see map |
| Winter | 8 to 40 ft | dawn | Sharp break (33 ft) | see map |
When the water first warms, yellowtail kingfish slide up into 8 to 45 ft. By summer they slide out to 20 to 130 ft, and by winter most fish are in 27 to 130 ft. If you only fish one area, make it Shoreline point: a point around 23 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 45 ft | dawn & dusk | Shoreline point (23 ft) | see map |
| Summer | 20 to 130 ft | dawn & dusk | Sharp break (62 ft) | see map |
| Fall | 8 to 91 ft | dawn & dusk | Sharp break (62 ft) | see map |
| Winter | 27 to 130 ft | midday | Sharp break (62 ft) | see map |
Count 10 structure marks on this chart. The deepest, Sharp break, sits near 71 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 06 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 06 is about 316 ft (96 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 06. 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 62 ft of water that rates prime for australian salmon in summer. The interactive chart above rates every 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 06 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 05 9 mi · Great Oyster Bay - Sector 09 14 mi · Great Oyster Bay - Sector 08 17 mi · Great Oyster Bay - Sector 11 30 mi · Great Oyster Bay - Sector 10 38 mi · Storm Bay - Sector 04 51 mi · Frederick Henry Bay - Northwest 75 mi · Storm Bay - Sector 06 80 mi · Great Musselroe Bay - West 83 mi · Storm Bay - Sector 11 86 mi · Storm Bay - Sector 10 90 mi · Ringarooma Bay 94 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.