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2,277-acre Captain Harbor fishing map with NOAA BlueTopo survey contours (97.41% measured, 99.52% assessed), charted rock and wreck structure, regional fish-survey occurrence, sourced forage timing and verified public access. The water tops out around 41 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. Below is the species-by-species picture, pulled from the same data the map uses.
Traced from the shoreline, Captain Harbor runs 2,275 acres with 17.3 miles of edge, broken up by 18 islands. A development index of 2.6 means a maze of bays and points: far more casting targets than a round bowl of the same size. The shallow band under 15 ft claims about 58% of the surface — that's where the groceries are. End to end it runs roughly 4.1 mi, about 1.9 mi across. Closest neighbour on DepthScout: Byram Harbor, 1 mi west of here.
When the water first warms, striped bass slide up into 5 to 20 ft. Summer is a 12 to 41 ft game here, winter a 12 to 41 ft one. Start at Greenwich Harbor channel edge. It's a channel edge holding about 17 ft of water and rates prime come summer. The feeding windows run early morning and the evening. Keep a topwater walker at low light or a paddletail on a light jig rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Surveyed channel edge (12 ft) | 3-6 inch paddletail, Suspending minnow plug |
| Summer | 12 to 41 ft chart-limited; documented 25 to 60 ft | dawn & dusk | Greenwich Harbor channel edge (17 ft) | Topwater walker at low light, Paddletail on a light jig |
| Fall | 10 to 35 ft | dawn & dusk | Greenwich Harbor channel edge (17 ft) | Pencil popper, Baitfish swimbait |
| Winter | 12 to 41 ft chart-limited; documented 20 to 50 ft | midday | Greenwich Harbor channel edge (17 ft) | Slow paddletail, Bucktail near bottom |
Start shallow in spring: bluefish sit in 3 to 20 ft that time of year. Summer pushes them deeper, 5 to 30 ft, and winter fish settle into 15 to 40 ft. The spot to know is Greenwich Harbor channel edge, a channel edge in about 17 ft of water that rates prime for bluefish in summer. Warm-month bites cluster around early morning and the evening. Throw a popper (early/late) or a metal jigs in the rips until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 20 ft | dawn & dusk | Greenwich Harbor channel edge (17 ft) | Metal (Hopkins/Kastmaster), Pencil popper |
| Summer | 5 to 30 ft | dawn & dusk | Greenwich Harbor channel edge (17 ft) | Popper (early/late), Metal jigs in the rips |
| Fall | 3 to 25 ft | dawn & midday | Surveyed channel edge (22 ft) | Pencil popper, Big metal |
| Winter | 15 to 40 ft | midday | Greenwich Harbor channel edge (17 ft) | Metal jig worked slow (southern waters) |
When the water first warms, summer flounder (fluke) slide up into 5 to 25 ft. By summer they slide out to 8 to 35 ft, and by winter most fish are in 12 to 41 ft. If you only fish one area, make it Greenwich Harbor channel edge: a channel edge around 17 ft that scores prime in summer. In summer the feeding windows fall in midday and early morning. Keep a bucktail (1-3 oz by drift speed) or a gulp grub on jighead rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | midday & dawn | Greenwich Harbor channel edge (17 ft) | Bucktail + Gulp swimming mullet, Hi-lo rig + squid strip |
| Summer | 8 to 35 ft | midday & dawn | Greenwich Harbor channel edge (17 ft) | Bucktail (1-3 oz by drift speed), Gulp grub on jighead |
| Fall | 11 to 41 ft chart-limited; documented 12 to 45 ft | midday | Greenwich Harbor channel edge (17 ft) | Heavier bucktail on the lumps, Big Gulp 6" grub |
| Winter | 12 to 41 ft chart-limited; documented 20 to 60 ft | midday | Greenwich Harbor channel edge (17 ft) | Slow bottom rig + strip |
When the water first warms, black sea bass slide up into 10 to 40 ft. Summer is a 10 to 41 ft game here, winter a 12 to 41 ft one. Start at NOAA charted underwater rock. It's a rock pile holding about 11 ft of water and rates prime come spring. The feeding windows run midday and early morning. Keep a bucktail + grub or a diamond jig + squid teaser rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | midday & dawn | NOAA charted underwater rock (11 ft) | Hi-lo rig + squid, 1-2 oz bucktail + Gulp |
| Summer | 10 to 41 ft chart-limited; documented 15 to 60 ft | midday & dawn | NOAA charted underwater rock (11 ft) | Bucktail + grub, Diamond jig + squid teaser |
| Fall | 10 to 41 ft chart-limited; documented 20 to 80 ft | midday | NOAA charted underwater rock (11 ft) | 3-4 oz vertical jig (deep), Double-teaser rig |
| Winter | 12 to 41 ft chart-limited; documented 40 to 100 ft | midday | Hitchcock Rock (13 ft) | Heavy hi-lo rig on deep wrecks |
Spring puts tautog (blackfish) in skinny water — 5 to 25 ft is the zone. Warm water sends them out to 10 to 35 ft; cold water stacks them in 12 to 41 ft. Dangerous NOAA charted wreck is the standout, a wreck at roughly 8 ft, rated prime for spring tautog (blackfish). Plan around early morning in the warm months. A 1/2-1 oz tog jig + crab covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | midday & dawn | Dangerous NOAA charted wreck (8 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 41 ft chart-limited; documented 10 to 50 ft | midday | Dangerous NOAA charted wreck (8 ft) | Tog jig + whole green crab, Old-school rig + double crab (deep) |
| Winter | 12 to 41 ft chart-limited; documented 30 to 70 ft | midday | Dangerous NOAA charted wreck (17 ft) | Heavy jig + crab on deep structure |
Come spring, look for scup (porgy) tight to the bank in 5 to 25 ft. They move out to 6 to 35 ft in summer and finish the year down in 10 to 41 ft. If you only fish one area, make it NOAA charted underwater rock: a rock pile around 11 ft that scores prime in spring. Best bite is midday and early morning. A hi-lo porgy rig or a micro metal jig is the honest summer answer here.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dawn | NOAA charted underwater rock (11 ft) | Small hi-lo rig, Micro jig tipped with bait |
| Summer | 6 to 35 ft | midday & dawn | NOAA charted underwater rock (11 ft) | Hi-lo porgy rig, Micro metal jig |
| Fall | 8 to 40 ft | midday | NOAA charted underwater rock (11 ft) | Compact vertical jig, Hi-lo rig |
| Winter | 10 to 41 ft chart-limited; documented 12 to 50 ft | midday | Greenwich Harbor channel edge (17 ft) | Small slow vertical jig |
Captain Harbor also holds winter flounder (8 to 30 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Count 141 structure marks on this chart. The deepest, Surveyed channel edge, sits near 34 ft.
Access data: Town of Greenwich — Greenwich Point Boat Yard. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Connecticut waters are set by the Connecticut DEEP (marine fishing) — and special regulations can apply to Captain Harbor specifically, so confirm the current rules before you fish.
Check the official Connecticut fishing regulations →
Captain Harbor is about 41 ft (12 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), scup (porgy), winter flounder on Captain Harbor. The list combines the water's survey records with habitat-filtered species from broader official evidence; those additions are plausible occurrences, not exact-water abundance or guaranteed catches.
NOAA charted underwater rock is the top-rated area: a rock pile in about 11 ft of water that rates prime for black sea bass in spring. The interactive chart above rates every 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 Captain Harbor is regulated by the Connecticut DEEP (marine fishing). Check the official Connecticut regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Byram Harbor 1 mi · Indian Harbor 1 mi · Port Chester Harbor 2 mi, NY · Greenwich Cove 2 mi · Stamford Harbor 5 mi · Mamaroneck Harbor 7 mi, NY · Larchmont Harbor 8 mi, NY · Kensico Reservoir 9 mi, NY · Echo Bay 10 mi, NY · Lloyd Harbor 10 mi, NY · Hempstead Harbor 11 mi, NY · Sheffield Island Harbor 11 mi
See how Captain Harbor stacks up: best striped bass lakes in Connecticut · best summer flounder (fluke) lakes in Connecticut · best winter flounder lakes in Connecticut · best bluefish lakes in Connecticut
Browse all Connecticut fishing maps. See every water on DepthScout. Bathymetry credit: NOAA BlueTopo (NAVD88; 97% measured, 2% 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.