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91,331-acre Great Musselroe 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 Great Musselroe Bay. A northeast Tasmanian bay of beaches, reef points, shallow banks and exposed Bass Strait approaches. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 247 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.
Drawn out, this is 91,329 acres of water rimmed by 47.3 miles of bank. The basin is a simple one (shoreline index 1.1) — close to a bowl, so the structure on the chart matters more than the bank. Littoral water — the productive band under ~15 ft — makes up 1% of this chart. The basin spans about 12.7 mi end to end and 12.1 mi across at its widest. For a second option, Great Musselroe Bay - West lies 11 mi south.
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 | — |
| gummy shark (Gummy Shark) | official species listing | — |
Official species-evidence source.
Spring puts sand flathead in skinny water — 8 to 35 ft is the zone. Warm water sends them out to 16 to 80 ft; cold water stacks them in 8 to 35 ft. Plan around early morning and the evening in the warm months.
| 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 gummy shark on Great Musselroe Bay - North hold shallow, usually 8 to 40 ft. By summer they slide out to 18 to 120 ft, and by winter most fish are in 8 to 40 ft. The chart's best answer is Sharp break — drop-off, 113 ft, prime for summer. Prime time lands in 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 (113 ft) | see map |
| Fall | 8 to 84 ft | dawn & dusk | Sharp break (113 ft) | see map |
| Winter | 8 to 40 ft | dawn | open water | see map |
6 pieces of structure are mapped here — Deepest basin, around 243 ft, is the deepest of them.
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 Musselroe Bay - North 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 Musselroe Bay - North is about 247 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, gummy shark roster for Great Musselroe 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 113 ft of water that rates prime for gummy shark in summer. Every other rated spot, per species and season, is on the map above.
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 Musselroe Bay - North 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 Musselroe Bay - West 11 mi · Great Musselroe Bay - Northwest 12 mi · Maclaines Bay 14 mi · Burgess Bay 22 mi · Ringarooma Bay 25 mi · Gunters Bay 32 mi · St Albans Bay 52 mi · Pilots Bay 80 mi · Great Oyster Bay - Sector 06 94 mi · Great Oyster Bay - Sector 05 98 mi · Great Oyster Bay - Sector 08 108 mi · Great Oyster Bay - Sector 09 108 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.