Salt water depth chart
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75,959-acre Roaringwater Bay. West saltwater fishing map with official INFOMAR survey bathymetry, measured-cell fishing spots, official fish evidence, seasonal forage guidance, access context and current-rule links. The west trip-scale survey reach of Roaringwater Bay, retaining only official survey-backed seabed cells that pass the Ireland release gates. The water tops out around 248 ft. The depth chart comes from INFOMAR (Geological Survey Ireland and Marine Institute) bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Here is how the season plays out for each species, straight from the data behind the map.
Roaringwater Bay - West maps at 75,903 acres behind 114 miles of shoreline, with a single island in the mix. The 3 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. About 2% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Figure 21.7 mi of water from one end to the other, 16.8 mi at the beam. Its nearest charted neighbour, Bantry Bay - Middle South, is 7 mi to the west.
Marine Institute spawning, nursery, observation and range layers support the principal surveyed pelagic and groundfish. IFI's national and regional sea-angling publications support additional habitat-compatible recreational targets. This is occurrence and search guidance, not equal abundance, a section-level population estimate or a promised catch. 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 |
|---|---|---|
| Mackerel (Atlantic Mackerel) | official species listing | — |
| Pollack (Atlantic Pollock) | official species listing | — |
| Coalfish (Saithe (Coalfish)) | official species listing | — |
| Haddock (Haddock) | official species listing | — |
| Whiting (Whiting) | official species listing | — |
| Cod (Atlantic Cod) | official species listing | — |
| Plaice (European Plaice) | official species listing | — |
| Flounder (European Flounder) | official species listing | — |
| Thornback ray (Thornback Ray) | official species listing | — |
| Brill (Brill) | official species listing | — |
| Ling (Ling) | official species listing | — |
| Bass (European Seabass) | official species listing | — |
| Garfish (Garfish) | official species listing | — |
Official species-evidence source.
The spring pattern is a shallow one: atlantic mackerel in 5 to 45 ft. Midsummer fish sit out in 15 to 80 ft before dropping to 30 to 120 ft for winter. The spot to know is Shoreline point, a point in about 49 ft of water that rates good for atlantic mackerel in spring. Plan around early morning and the evening in the warm months. Summer baits: a feather rig or a small vertical jig gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 45 ft | dawn & dusk | Shoreline point (49 ft) | Mackerel feather rig, Small silver jig |
| Summer | 15 to 80 ft | dawn & dusk | Shoreline point (49 ft) | Feather rig, Small vertical jig |
| Fall | 10 to 65 ft | dawn & dusk | Shoreline point (49 ft) | Compact silver jig, Sparse feather rig |
| Winter | 30 to 120 ft | midday | Sharp break (140 ft) | Small deep jig |
Start shallow in spring: atlantic pollock sit in 8 to 100 ft that time of year. Summer pushes them deeper, 12 to 150 ft, and winter fish settle into 35 to 220 ft. The spot to know is Shoreline point, a point in about 49 ft of water that rates prime for atlantic pollock in summer. Warm-month bites cluster around early morning and the evening. Throw a surface plug or a baitfish swimbait until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 100 ft | dawn & dusk | Shoreline point (49 ft) | Sandeel-pattern lure, Soft-plastic shad |
| Summer | 12 to 150 ft | dawn & dusk | Shoreline point (49 ft) | Surface plug, Baitfish swimbait |
| Fall | 15 to 160 ft | dawn | Shoreline point (49 ft) | Metal jig, Minnow plug |
| Winter | 35 to 220 ft | midday | Sharp break (140 ft) | Slow metal jig, Weighted soft plastic |
When the water first warms, saithe (coalfish) slide up into 15 to 160 ft. Summer is a 24 to 248 ft game here, winter a 35 to 248 ft one. Start at INFOMAR measured current seam. It's a current seam holding about 111 ft of water and rates prime come spring. The feeding windows run early morning and the evening. Keep a speed jig or a heavy paddletail rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 160 ft | dawn & dusk | INFOMAR measured current seam (111 ft) | Slim metal jig, Paddletail |
| Summer | 24 to 248 ft | dawn & dusk | Sharp break (140 ft) | Speed jig, Heavy paddletail |
| Fall | 20 to 220 ft | dawn & dusk | INFOMAR measured current seam (111 ft) | Metal jig, Baitfish swimbait |
| Winter | 35 to 248 ft | midday | Deepest basin (247 ft) | Heavy vertical jig |
Early season haddock use the shallows, holding in 35 to 220 ft. Summer is a 47 to 248 ft game here, winter a 43 to 248 ft one. The chart's best answer is Deepest basin — deep basin, 247 ft, prime for summer. Best bite is early morning. Tie on a compact metal jig or a bottom rig and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 35 to 220 ft | dawn | INFOMAR measured flat (30 ft) | Small bottom jig, Beaded trace |
| Summer | 47 to 248 ft | dawn | Deepest basin (247 ft) | Compact metal jig, Bottom rig |
| Fall | 43 to 248 ft | midday | Deepest basin (247 ft) | Small vertical jig |
| Winter | 43 to 248 ft | midday | Deepest basin (247 ft) | Deep bottom jig |
Early season whiting use the shallows, holding in 15 to 55 ft. Summer is a 20 to 70 ft game here, winter a 15 to 70 ft one. Best bite is early morning. Tie on a small vertical jig and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 55 ft | dawn & dusk | open water | Small silver jig, Two-hook feather rig |
| Summer | 20 to 70 ft | dawn | open water | Small vertical jig |
| Fall | 10 to 60 ft | dusk | open water | Small silver jig, Sparse feather rig |
| Winter | 15 to 70 ft | dusk | open water | Compact vertical jig |
Start shallow in spring: atlantic cod sit in 20 to 100 ft that time of year. Summer pushes them deeper, 45 to 180 ft, and winter fish settle into 50 to 220 ft. The spot to know is Deepest basin, a deep basin in about 247 ft of water that rates good for atlantic cod in winter. Warm-month bites cluster around early morning. Throw a heavy metal jig or a large soft-plastic jig until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 20 to 100 ft | dawn | open water | Diamond jig, Heavy bucktail |
| Summer | 45 to 180 ft | dawn | Sharp break (140 ft) | Heavy metal jig, Large soft-plastic jig |
| Fall | 25 to 140 ft | dawn | Sharp break (140 ft) | Diamond jig, Bucktail with teaser |
| Winter | 50 to 220 ft | midday | Deepest basin (247 ft) | Heavy vertical jig |
Roaringwater Bay - West also holds european plaice (6 to 40 ft in summer), european flounder (6 to 35 ft in summer), thornback ray (10 to 65 ft in summer), brill (6 to 50 ft in summer), ling (41 to 248 ft in summer), european seabass (2 to 30 ft in summer), garfish (2 to 20 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Structure-wise the chart holds 7 features, led in depth by Deepest basin at roughly 247 ft.
Access data: Marine Institute — Fishing Ports. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Ireland waters are set by the Inland Fisheries Ireland (current sea-angling regulations) — and special regulations can apply to Roaringwater Bay - West specifically, so confirm the current rules before you fish. Check the current national and water-specific rules before every trip, including bass measures, the 2026 recreational pollack controls, salmon and sea-trout licences and river-specific status, protected areas, harbour directions, private land and local signs. A mapped fishing port or measured seabed feature is not permission to fish, park, launch or enter a working harbour.
Check the official Ireland fishing regulations →
Department of Climate, Energy and the Environment (2026 salmon and sea-trout status) →
Check special-area and water-specific rules →
Check official shore-access information →
Roaringwater Bay - West is about 248 ft (76 m) deep at its deepest point. The depth chart comes from INFOMAR (Geological Survey Ireland and Marine Institute) bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Official coastal monitoring from Marine Institute and Inland Fisheries Ireland informs the atlantic mackerel, atlantic pollock, saithe (coalfish), haddock, whiting, atlantic cod, european plaice, european flounder, thornback ray, brill, ling, european seabass, garfish roster for Roaringwater Bay - West. 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.
Shoreline point is the top-rated area: a point in about 49 ft of water that rates prime for atlantic pollock in summer. Open the map above to see every rated spot for each species and season.
For atlantic mackerel, 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 Roaringwater Bay - West is regulated by the Inland Fisheries Ireland (current sea-angling regulations). Check the official Ireland regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Bantry Bay - Middle South 7 mi · Bantry Bay - Inner South 9 mi · Roaringwater Bay - Middle 12 mi · Bantry Bay - Inner North 12 mi · Kenmare Bay - Middle 17 mi · Bantry Bay - Outer South 20 mi · Roaringwater Bay - East 20 mi · Kenmare Bay - Outer 25 mi · Clonakilty and Courtmacsherry Bays - Clonakilty 29 mi · Clonakilty and Courtmacsherry Bays - Courtmacsherry 41 mi · Kinsale Harbour - Outer 44 mi · Dingle Bay - West South 46 mi
See how Roaringwater Bay - West stacks up: best european flounder lakes in Ireland · best garfish lakes in Ireland · best european seabass lakes in Ireland · best european plaice lakes in Ireland
Browse all Ireland fishing maps. See every water on DepthScout. Bathymetry credit: INFOMAR (Geological Survey Ireland and Marine Institute) INFOMAR All Survey bathymetry mosaic (Source-survey vertical references retained in the INFOMAR All Survey mosaic; 100% measured, 0% 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.