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19,276-acre Great Peconic Bay fishing map with NOAA BlueTopo survey contours (98.67% measured, 99.79% assessed), charted rock and wreck structure, regional fish-survey occurrence, sourced forage timing and verified public access. The water tops out around 42 ft. The depth chart is built from real agency bathymetry referenced to NAVD88; directly measured coverage remains distinguished from source interpolation. The channels, holes and drop-offs come from the source data, not a distance-from-shore model. Every species below gets its seasonal read from the same numbers driving the chart.
Great Peconic Bay maps at 19,244 acres behind 28.6 miles of shoreline — 2 islands included. A middling shoreline index (1.5) gives it some bays to work without being a maze. Littoral water — the productive band under ~15 ft — makes up 39% of this chart. Figure 7 mi of water from one end to the other, 6.8 mi at the beam. Marratooka Lake sits 4 mi north — the closest neighbouring chart.
Spring puts striped bass in skinny water — 5 to 20 ft is the zone. As the season builds they drop to 13 to 42 ft, wintering in 13 to 42 ft. Summer striped bass concentrate at Surveyed channel edge, a prime-rated drop-off around 22 ft. Warm-month bites cluster around early morning and the evening. A flutter spoon (deep) or an umbrella rig (trolled) covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Surveyed channel edge (16 ft) | Bucktail jig + trailer, Walking topwater (dawn) |
| Summer | 13 to 42 ft | dawn & dusk | Surveyed channel edge (22 ft) | Flutter spoon (deep), Umbrella rig (trolled) |
| Fall | 10 to 35 ft | dawn & dusk | Surveyed channel edge (22 ft) | Topwater walker, Jerkbait |
| Winter | 13 to 42 ft | midday | Surveyed channel edge (22 ft) | Alabama rig (slow), Flutter spoon |
When the water first warms, bluefish slide up into 3 to 20 ft. By summer they slide out to 5 to 30 ft, and by winter most fish are in 15 to 40 ft. If you only fish one area, make it Surveyed channel edge: a drop-off around 22 ft that scores prime in summer. In summer the feeding windows fall in early morning and the evening. Keep a popper (early/late) or a metal jigs in the rips rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 20 ft | dawn & dusk | Shallow feeding flat (20 ft) | Metal (Hopkins/Kastmaster), Pencil popper |
| Summer | 5 to 30 ft | dawn & dusk | Surveyed channel edge (22 ft) | Popper (early/late), Metal jigs in the rips |
| Fall | 3 to 25 ft | dawn & midday | Shallow feeding flat (20 ft) | Pencil popper, Big metal |
| Winter | 15 to 40 ft | midday | Surveyed channel edge (22 ft) | Metal jig worked slow (southern waters) |
Start shallow in spring: summer flounder (fluke) sit in 5 to 25 ft that time of year. Summer pushes them deeper, 8 to 35 ft, and winter fish settle into 13 to 42 ft. The spot to know is Surveyed channel edge, a drop-off in about 22 ft of water that rates prime for summer flounder (fluke) in summer. Warm-month bites cluster around midday and early morning. Throw a bucktail (1-3 oz by drift speed) or a gulp grub on jighead until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | midday & dawn | Surveyed channel edge (22 ft) | Bucktail + Gulp swimming mullet, Hi-lo rig + squid strip |
| Summer | 8 to 35 ft | midday & dawn | Surveyed channel edge (22 ft) | Bucktail (1-3 oz by drift speed), Gulp grub on jighead |
| Fall | 11 to 42 ft | midday | Surveyed channel edge (22 ft) | Heavier bucktail on the lumps, Big Gulp 6" grub |
| Winter | 13 to 42 ft | midday | Surveyed channel edge (22 ft) | Slow bottom rig + strip |
Spring puts black sea bass in skinny water — 10 to 40 ft is the zone. As the season builds they drop to 11 to 42 ft, wintering in 13 to 42 ft. Spring black sea bass concentrate at NOAA charted underwater rock, a prime-rated rock pile around 10 ft. Warm-month bites cluster around midday and early morning. A bucktail + grub or a diamond jig + squid teaser covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | midday & dawn | NOAA charted underwater rock (10 ft) | Hi-lo rig + squid, 1-2 oz bucktail + Gulp |
| Summer | 11 to 42 ft | midday & dawn | Robins Island Rock (14 ft) | Bucktail + grub, Diamond jig + squid teaser |
| Fall | 11 to 42 ft | midday | Robins Island Rock (14 ft) | 3-4 oz vertical jig (deep), Double-teaser rig |
| Winter | 13 to 42 ft | midday | Robins Island Rock (14 ft) | Heavy hi-lo rig on deep wrecks |
Spring tautog (blackfish) on Great Peconic Bay hold shallow, usually 5 to 25 ft. They move out to 10 to 35 ft in summer and finish the year down in 13 to 42 ft. Put NOAA charted wreck first on the milk run — a wreck near 5 ft that grades prime for spring. The feeding windows run early morning. The summer box starts with a 1/2-1 oz tog jig + crab.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | midday & dawn | NOAA charted wreck (5 ft) | Tog jig + green crab half, Bare jig + clam (early) |
| Summer | 10 to 35 ft | dawn | Dangerous NOAA charted wreck (17 ft) | 1/2-1 oz tog jig + crab |
| Fall | 8 to 42 ft | midday | Dangerous NOAA charted wreck (17 ft) | Tog jig + whole green crab, Old-school rig + double crab (deep) |
| Winter | 13 to 42 ft | midday | Dangerous NOAA charted wreck (17 ft) | Heavy jig + crab on deep structure |
The chart marks 32 structure features on Great Peconic Bay; the deepest is Dangerous NOAA charted wreck at about 25 ft.
Access data: New York State DEC — Boat Launches (FishNY). Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for New York waters are set by the New York DEC (saltwater fishing) — and special regulations can apply to Great Peconic Bay specifically, so confirm the current rules before you fish.
Check the official New York fishing regulations →
Great Peconic Bay is about 42 ft (13 m) deep at its deepest point. The depth chart is built from real agency bathymetry referenced to NAVD88; directly measured coverage remains distinguished from source interpolation. The contours reflect measured and quality-assessed source depths.
Anglers target striped bass, bluefish, summer flounder (fluke), black sea bass, tautog (blackfish) on Great Peconic Bay.
Surveyed channel edge is the top-rated area: a drop-off in about 22 ft of water that rates prime for summer flounder (fluke) in summer. Open the map above to see every rated spot for each species and season.
For striped bass, 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 Peconic Bay is regulated by the New York DEC (saltwater fishing). Check the official New York regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Marratooka Lake 4 mi · Laurel Lake 4 mi · Peconic River 7 mi, NY/CT · Shinnecock Inlet 7 mi · Wildwood Lake 9 mi · Fresh Pond (Shelter Island) 12 mi · Pipes Cove 12 mi · Coecles Harbor 14 mi · Northwest Harbor 15 mi · Deep Pond 17 mi · Three Mile Harbor 17 mi · Pettys Bight 19 mi
See how Great Peconic Bay stacks up: best striped bass lakes in New York · best summer flounder (fluke) lakes in New York · best bluefish lakes in New York · best black sea bass lakes in New York
Browse all New York fishing maps or see every water on DepthScout. Bathymetry credit: NOAA BlueTopo (NAVD88; 99% measured, 1% source-interpolated). 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.