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94,137-acre Cave Bay 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 Cave Bay. An official Australian bay 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 169 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.
Traced from the shoreline, Cave Bay runs 94,126 acres with 55 miles of edge. At index 1.3 the outline is almost a bowl — read the depth changes, not the shoreline. The shallow band under 15 ft claims about 3% of the surface — that's where the groceries are. Tip to tip the water measures near 19.7 mi with a 12.9-mi widest point. For a second option, Perkins Bay - West lies 13 mi west.
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 puts sand flathead in skinny water — 8 to 35 ft is the zone. As the season builds they drop to 16 to 80 ft, wintering in 8 to 35 ft. Summer sand flathead concentrate at Sharp break, a good-rated drop-off around 49 ft. Warm-month bites cluster around early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | Sharp break (37 ft) | see map |
| Summer | 16 to 80 ft | dawn & dusk | Sharp break (49 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Sharp break (49 ft) | see map |
| Winter | 8 to 35 ft | dawn | Sharp break (37 ft) | see map |
Spring black bream on Cave Bay hold shallow, usually 2 to 16 ft. They move out to 7 to 35 ft in summer and finish the year down in 2 to 16 ft. Put Sharp break first on the milk run — a drop-off near 37 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 | 2 to 16 ft | dawn & dusk | open water | see map |
| Summer | 7 to 35 ft | dawn & dusk | Sharp break (37 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Offshore hump (18 ft) | see map |
| Winter | 2 to 16 ft | dawn | open water | see map |
When the water first warms, australian salmon slide up into 4 to 30 ft. By summer they slide out to 14 to 80 ft, and by winter most fish are in 4 to 30 ft. If you only fish one area, make it Sharp break: a drop-off around 49 ft that scores prime in summer. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Shoreline point (29 ft) | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (49 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (49 ft) | see map |
| Winter | 4 to 30 ft | dawn | Shoreline point (29 ft) | see map |
Spring silver trevally on Cave Bay hold shallow, usually 4 to 30 ft. They move out to 14 to 80 ft in summer and finish the year down in 18 to 80 ft. Put Sharp break first on the milk run — a drop-off near 49 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 | 4 to 30 ft | dawn & dusk | Shoreline point (29 ft) | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (49 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (49 ft) | see map |
| Winter | 18 to 80 ft | midday | Sharp break (49 ft) | see map |
Spring gummy shark on Cave Bay hold shallow, usually 8 to 40 ft. They move out to 18 to 120 ft in summer and finish the year down in 8 to 40 ft. Put Sharp break first on the milk run — a drop-off near 104 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 40 ft | dawn & dusk | Sharp break (37 ft) | see map |
| Summer | 18 to 120 ft | dawn & dusk | Sharp break (104 ft) | see map |
| Fall | 8 to 84 ft | dawn & dusk | Sharp break (49 ft) | see map |
| Winter | 8 to 40 ft | dawn | Sharp break (37 ft) | see map |
Start shallow in spring: yellowtail kingfish sit in 8 to 45 ft that time of year. Warm water sends them out to 20 to 130 ft; cold water stacks them in 27 to 130 ft. Top water on the chart: Shoreline point, a point in the 29 ft range, prime in spring. Fish it in early morning and the evening and you'll meet the bite.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 45 ft | dawn & dusk | Shoreline point (29 ft) | see map |
| Summer | 20 to 130 ft | dawn & dusk | Sharp break (104 ft) | see map |
| Fall | 8 to 91 ft | dawn & dusk | Sharp break (49 ft) | see map |
| Winter | 27 to 130 ft | midday | Sharp break (104 ft) | see map |
Count 14 structure marks on this chart. The deepest, Deepest basin, sits near 168 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 Cave Bay 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 →
Cave Bay is about 169 ft (52 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 Cave Bay. 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 49 ft of water that rates prime for australian salmon in summer. The map above holds the full rated-spot list for every 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 Cave Bay 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.
Perkins Bay - West 13 mi · Perkins Bay - North 18 mi · Emu Bay 25 mi · Perkins Bay - Northwest 28 mi · East Telegraph Bay 39 mi · Pilots Bay 68 mi · St Albans Bay 93 mi · Macquarie Harbour - West 98 mi · Ringarooma Bay 119 mi · Great Musselroe Bay - Northwest 132 mi · Corner Inlet - West 138 mi, VIC · Maclaines Bay 138 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.