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99,114-acre Iroise Sea. North West 1 France saltwater fishing map with official SHOM 100 m bathymetry, source-qualified fishing spots, official regional fish evidence, seasonal forage guidance, public shore-use context and current-rule links. The exposed Iroise Sea from Ushant through the Brest approaches, with reefs, islands and strong Atlantic tide races. This page covers the north west 1 angler-scale survey window. The water tops out around 663 ft. The depth chart comes from Shom (Service hydrographique et océanographique de la Marine) bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What follows comes from the same scoring engine that paints the spots above.
The outline encloses 99,204 acres, worked by 51.3 miles of shoreline. A shoreline index of 1.2 says round and simple: fish relate to depth changes here, not shoreline features. Littoral water — the productive band under ~15 ft — makes up 0% of this chart. The basin spans about 16 mi end to end and 9.7 mi across at its widest. Iroise Sea - North West 2 sits 10 mi east — the closest neighbouring chart.
Iroise Sea — North West 1, France : carte SHOM officielle jusqu’à 202 m; spots pour bar commun, maquereau commun. Pour préparer la pêche, jamais pour naviguer. Les profondeurs et les points de structure proviennent de la grille bathymétrique officielle du Shom. Les données servent à préparer la pêche et ne doivent jamais être utilisées pour la navigation.
Regional occurrence supports a search target, not equal abundance, child-specific catch rate, retention permission or a promised catch. Current national, EU, regional, protected-area and species 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 |
|---|---|---|
| bar commun (European Seabass) | official species listing | — |
| maquereau commun (Atlantic Mackerel) | official species listing | — |
| lieu jaune (Atlantic Pollock) | official species listing | — |
| lieu noir (Saithe (Coalfish)) | official species listing | — |
| cabillaud (Atlantic Cod) | official species listing | — |
| lingue (Ling) | official species listing | — |
| orphie (Garfish) | official species listing | — |
| barbue (Brill) | official species listing | — |
| raie bouclée (Thornback Ray) | official species listing | — |
| sole commune (Common Sole) | official species listing | — |
| mulet lippu (Thick-lipped Grey Mullet) | official species listing | — |
| mulet cabot (Flathead Grey Mullet) | official species listing | — |
| anguille européenne (European Eel) | official species listing | — |
Official species-evidence source.
When the water first warms, european seabass slide up into 3 to 25 ft. By summer they slide out to 2 to 30 ft, and by winter most fish are in 10 to 55 ft. In summer the feeding windows fall in early morning and the evening. Keep a surface lure or a paddle-tail soft plastic rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | open water | Paddle-tail soft plastic, Shallow minnow plug |
| Summer | 2 to 30 ft | dawn & dusk | open water | Surface lure, Paddle-tail soft plastic |
| Fall | 4 to 40 ft | dawn & dusk | open water | Slim metal lure, Minnow plug |
| Winter | 10 to 55 ft | midday | open water | Slow soft-plastic shad, Suspending minnow |
The spring pattern is a shallow one: atlantic mackerel in 5 to 45 ft. As the season builds they drop to 15 to 80 ft, wintering in 30 to 120 ft. Time it for early morning and the evening. 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 | open water | Mackerel feather rig, Small silver jig |
| Summer | 15 to 80 ft | dawn & dusk | open water | Feather rig, Small vertical jig |
| Fall | 10 to 65 ft | dawn & dusk | open water | Compact silver jig, Sparse feather rig |
| Winter | 30 to 120 ft | midday | open water | Small deep jig |
Start shallow in spring: atlantic pollock sit in 8 to 100 ft that time of year. Warm water sends them out to 12 to 150 ft; cold water stacks them in 35 to 220 ft. Top water on the chart: SHOM-grid point, a point in the 203 ft range, good in winter. Fish it in early morning and the evening and you'll meet the bite. 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 | open water | Sandeel-pattern lure, Soft-plastic shad |
| Summer | 12 to 150 ft | dawn & dusk | SHOM-grid point (203 ft) | Surface plug, Baitfish swimbait |
| Fall | 15 to 160 ft | dawn | SHOM-grid point (203 ft) | Metal jig, Minnow plug |
| Winter | 35 to 220 ft | midday | SHOM-grid point (203 ft) | Slow metal jig, Weighted soft plastic |
When the water first warms, saithe (coalfish) slide up into 15 to 160 ft. By summer they slide out to 25 to 260 ft, and by winter most fish are in 45 to 320 ft. If you only fish one area, make it SHOM-grid current seam: a current seam around 265 ft that scores good in summer. In summer the feeding windows fall in 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 | SHOM-grid point (203 ft) | Slim metal jig, Paddletail |
| Summer | 25 to 260 ft | dawn & dusk | SHOM-grid current seam (265 ft) | Speed jig, Heavy paddletail |
| Fall | 20 to 220 ft | dawn & dusk | SHOM-grid point (203 ft) | Metal jig, Baitfish swimbait |
| Winter | 45 to 320 ft | midday | SHOM-grid channel edge (331 ft) | Heavy vertical jig |
Start shallow in spring: atlantic cod sit in 20 to 100 ft that time of year. Warm water sends them out to 45 to 180 ft; cold water stacks them in 50 to 220 ft. Fish it in early morning and you'll meet the bite. 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 | open water | Heavy metal jig, Large soft-plastic jig |
| Fall | 25 to 140 ft | dawn | open water | Diamond jig, Bucktail with teaser |
| Winter | 50 to 220 ft | midday | open water | Heavy vertical jig |
When the water first warms, ling slide up into 80 to 450 ft. By summer they slide out to 100 to 600 ft, and by winter most fish are in 123 to 663 ft. If you only fish one area, make it Sharp break: a drop-off around 581 ft that scores prime in summer. In summer the feeding windows fall in midday. Keep a heavy vertical jig rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 80 to 450 ft | midday | SHOM-grid channel edge (331 ft) | Heavy metal jig, Large soft-plastic jig |
| Summer | 100 to 600 ft | midday | Sharp break (581 ft) | Heavy vertical jig |
| Fall | 90 to 520 ft | midday | Sharp break (581 ft) | Long metal jig |
| Winter | 123 to 663 ft | midday | Deepest basin (661 ft) | Heavy deep jig |
Iroise Sea - North West 1 also holds garfish (2 to 20 ft in summer), brill (6 to 50 ft in summer), thornback ray (10 to 65 ft in summer), common sole (3 to 30 ft in summer), thick-lipped grey mullet (1 to 18 ft in summer), flathead grey mullet (1 to 22 ft in summer), european eel (6 to 28 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Iroise Sea - North West 1 carries 7 mapped structure features, topping out (or rather bottoming out) at Deepest basin, about 661 ft down.
No official 2025 EEA designated bathing-water point matched within 400 metres of this SHOM-grid shoreline. This is an access-evidence gap, not a statement that public fishing access does not exist. Verify local fishing rights, land ownership, posted restrictions, protected areas, tidal and surf safety, and municipal permission before entry.
Private land and private launches need the owner's permission — please ask first.
Season dates, license requirements, and size and bag limits for France waters are set by the Légifrance (current French recreational sea-fishing minimum sizes) — and special regulations can apply to Iroise Sea - North West 1 specifically, so confirm the current rules before you fish. French recreational sea-fishing rules combine current national and European species measures with façade, prefectural, marine-protected-area, harbour and local access controls. Check live minimum sizes, quotas, seasonal or method closures, marking requirements and any no-take zone before every trip. A SHOM contour, fishing-spot marker or designated bathing-water lead is planning context only and never permission to fish, retain a catch, park, launch or enter restricted shore or port property.
Check the official France fishing regulations →
French Ministry for Ecological Transition — recreational sea fishing →
Check special-area and water-specific rules →
Check official shore-access information →
Iroise Sea - North West 1 is about 663 ft (202 m) deep at its deepest point. The depth chart comes from Shom (Service hydrographique et océanographique de la Marine) bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Official coastal monitoring from Ifremer CGFS and coastal estuary monitoring regional survey evidence informs the european seabass, atlantic mackerel, atlantic pollock, saithe (coalfish), atlantic cod, ling, garfish, brill, thornback ray, common sole, thick-lipped grey mullet, flathead grey mullet, european eel roster for Iroise Sea - North West 1. 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 581 ft of water that rates prime for ling in summer. Scroll up to the map for the complete spot list by species and season.
For european seabass, 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 Iroise Sea - North West 1 is regulated by the Légifrance (current French recreational sea-fishing minimum sizes). Check the official France regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Iroise Sea - North West 2 10 mi · Iroise Sea - Middle West 1 17 mi · Iroise Sea - Middle West 2 19 mi · Iroise Sea - North West 3 19 mi · Iroise Sea - Middle West 3 28 mi · Iroise Sea - North West 4 29 mi · Rade de Brest - South West 31 mi · Iroise Sea - South West 1 32 mi · Iroise Sea - South West 2 34 mi · Iroise Sea - Middle West 4 35 mi · Rade de Brest - South Central 36 mi · Iroise Sea - South West 3 37 mi
See how Iroise Sea - North West 1 stacks up: best garfish lakes in France · best european seabass lakes in France · best common sole lakes in France · best thick-lipped grey mullet lakes in France
Browse all France 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.