Salt water depth chart
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21,037-acre Korppoon - Houtskarin ulkosaaristoalue. Sector 10 Finland coastal fishing map with an exact official national water-body boundary, EMODnet 2024 official Finnish hydrographic chart/DTM assessed contours, source-assessed fishing spots, official regional fish evidence, seasonal forage guidance, public-access review and current-rule links. Official Syke VHS 2022 named coastal water in Archipelago Sea. This child is clipped to the exact source polygon and a trip-scale ownership window. Coverage classes and uncertainty limits are disclosed; this is a fishing-planning chart, not a navigation chart or catch forecast. The water tops out around 73 m. The depth chart comes from EMODnet, with national hydrographic source-reference audit official hydrographic-chart depth models, so the contours are chart-derived rather than computer-modeled; no directly measured sounding coverage is claimed. What follows comes from the same scoring engine that paints the spots above.
Vesi piirtyy 8 508 hehtaarin laajuisena, rantaa 136 km, ja saaria on 218. Rantaviiva on voimakkaasti rikkonainen (indeksi 4.2) — lahtia ja niemiä kaikkialla, mikä moninkertaistaa kalastettavan reunan. Noin 12% pinnasta on matalampaa kuin ~5 m — siellä ruokaketju elää. Päästä päähän vesi mittaa noin 17.4 km, leveimmillään 10.9 km. Lähin kartoitettu vesi on Örön ja Jurmon välinen ulkosaaristoalue - North West, 6.4 km etelään.
Ilmainen interaktiivinen kalastuskartta — Korppoon - Houtskarin ulkosaaristoalue — Sector 10, Suomi: virallisiin merikartta- ja syvyysmallilähteisiin tarkistetut syvyyskäyrät 73 metriin (238 jalkaa) asti, parhaat kalapaikat lajeille ahven, kuha, hauki ja muut. Syvyyskäyrät perustuvat Syken todellisiin syvyysmittauksiin (CC BY 4.0). Käytä karttaa suuntaa-antavana, älä koskaan navigointiin.
Occurrence evidence does not promise a catch or establish that retention is legal. Current seasons, closures, protected species, gear rules and local restrictions 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 |
|---|---|---|
| (European Perch) | official species listing | — |
| (Zander) | official species listing | — |
| (Northern Pike) | official species listing | — |
| (Atlantic Herring) | official species listing | — |
| (European Whitefish) | official species listing | — |
| (European Flounder) | official species listing | — |
| (Sea Trout) | official species listing | — |
| (European Smelt) | official species listing | — |
Official species-evidence source.
Spring european perch on Korppoon - Houtskarin ulkosaaristoalue - Sector 10 hold shallow, usually 1 to 3.5 m. By summer they slide out to 2.5 to 8.5 m, and by winter most fish are in 3.5 to 10 m. The chart's best answer is Weed flat — weed flat, 2 m, prime for spring. Prime time lands in early morning. The summer box starts with a drop-shot micro plastics or a small crankbait (perch pattern).
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1 to 3.5 m | midday & dawn | Weed flat (2 m) | Small jig + curly tail, Inline spinner #1-2 |
| Kesä | 2.5 to 8.5 m | dawn | Weed flat (2 m) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Syksy | 3 to 10 m | midday | Sharp break (10 m) | Jigging spoon (small), Drop-shot on deep flats |
| Talvi | 3.5 to 10 m | midday & dawn | Sharp break (10 m) | Tungsten jig + maggots, Small balance jig |
Spring zander on Korppoon - Houtskarin ulkosaaristoalue - Sector 10 hold shallow, usually 1 to 4.5 m. By summer they slide out to 4.5 to 11 m, and by winter most fish are in 6 to 12 m. The chart's best answer is Sharp break — drop-off, 10 m, prime for fall. Prime time lands in the evening and early morning. The summer box starts with a vertical softbait over humps or a deep crankbait.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1 to 4.5 m | dusk & dawn | Rock reef (1 m) | Softbait on jighead (10-12 cm), Shallow crankbait at dusk |
| Kesä | 4.5 to 11 m | dusk & dawn | Sharp break (10 m) | Vertical softbait over humps, Deep crankbait |
| Syksy | 3.5 to 12 m | dusk & night | Sharp break (10 m) | Big softbait (12-16 cm) slow-rolled, Jigging spoon |
| Talvi | 6 to 12 m | dusk & dawn | Sharp break (10 m) | Slow blade bait |
When the water first warms, northern pike slide up into 0.5 to 2.5 m. By summer they slide out to 2.5 to 6 m, and by winter most fish are in 1.5 to 4.5 m. If you only fish one area, make it Weed flat: a weed flat around 2 m that scores prime in spring. In summer the feeding windows fall in early morning and the evening. Keep a bucktail or a weedless spoon over cabbage rigged through the warm months.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 0.5 to 2.5 m | midday & dawn | Weed flat (2 m) | #5 inline spinner, Spoon (red/white) |
| Kesä | 2.5 to 6 m | dawn & dusk | Weed flat (2 m) | Bucktail, Weedless spoon over cabbage |
| Syksy | 2 to 5.5 m | midday & dawn | Weed flat (2 m) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Talvi | 1.5 to 4.5 m | midday | Weed flat (2 m) | Large jigging spoon |
Early season atlantic herring use the shallows, holding in 1.5 to 7.5 m. Expect a summer slide to 4.5 to 15 m, then a winter hold in 6 to 18 m. Put Sharp break first on the milk run — a drop-off near 13 m that grades good for summer. In summer the feeding windows fall in early morning and the evening. Tie on a herring feather rig or a small silver jig and you're in the game.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1.5 to 7.5 m | dawn & dusk | Rock reef (1 m) | Small herring feather rig, Micro jig rig |
| Kesä | 4.5 to 15 m | dawn & dusk | Sharp break (13 m) | Herring feather rig, Small silver jig |
| Syksy | 3 to 12 m | dawn & dusk | Sharp break (10 m) | Small feather rig, Compact silver spoon |
| Talvi | 6 to 18 m | midday | Sharp break (13 m) | Small silver jig, Sparse feather rig |
In spring, european whitefish run shallow here, mostly 3 to 12 m. Midsummer fish sit out in 8.5 to 24 m before dropping to 5.5 to 18 m for winter. Spring european whitefish concentrate at Sharp break, a good-rated drop-off around 10 m. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a small vertical spoon or a micro jig most summer days.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 3 to 12 m | dawn & dusk | Sharp break (10 m) | Small silver spoon, Micro blade bait |
| Kesä | 8.5 to 24 m | dawn & dusk | Sharp break (13 m) | Small vertical spoon, Micro jig |
| Syksy | 1.5 to 11 m | dusk & dawn | Rock reef (1 m) | Small gold spoon, Micro jig |
| Talvi | 5.5 to 18 m | midday | Sharp break (13 m) | Small jigging spoon |
In spring, european flounder run shallow here, mostly 1.5 to 7.5 m. Summer pushes them deeper, 2 to 11 m, and winter fish settle into 4.5 to 15 m. Sharp break is the standout, a drop-off at roughly 10 m, rated prime for fall european flounder. Time it for early morning and the evening. You won't need more than a bottom jig with spinner blade most summer days.
| Kausi | Syvyys | Paras aika | Aloita | Vieheet |
|---|---|---|---|---|
| Kevät | 1.5 to 7.5 m | dusk | open water | Small bucktail dragged on bottom |
| Kesä | 2 to 11 m | dawn & dusk | Sharp break (10 m) | Bottom jig with spinner blade |
| Syksy | 2.5 to 12 m | dusk | Sharp break (10 m) | Compact bottom jig |
| Talvi | 4.5 to 15 m | midday | Sharp break (13 m) | Small bottom jig |
Korppoon - Houtskarin ulkosaaristoalue - Sector 10 also holds sea trout (4.5 to 15 m in summer), european smelt (7.5 to 21 m in summer). Pick any of them on the map above for rated spots and bait picks.
Korppoon - Houtskarin ulkosaaristoalue - Sector 10 carries 16 mapped structure features, topping out (or rather bottoming out) at Deepest basin, about 73 m down.
No active municipality-, consortium-, or state-owned LIPAS fishing, boating, beach, swimming, canoe or motor-boat facility matched within 400 metres of this exact mapped shoreline. This is an access-evidence gap, not a claim that public access does not exist. Verify land ownership, local signs, parking, safety, permits and fishing 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 Finland waters are set by the Kalastusrajoitus.fi (official current Finnish fishing-restriction service) — and special regulations can apply to Korppoon - Houtskarin ulkosaaristoalue - Sector 10 specifically, so confirm the current rules before you fish. Check Kalastusrajoitus.fi, current protection periods and permit requirements before every Finnish coastal trip. Local no-fishing areas, river-mouth restrictions, protected species, minimum sizes, seasonal closures, gear rules, the fisheries-management fee and water-owner permissions may apply. A mapped hydrographic contour, fishing-spot marker or nearby LIPAS public facility is planning context only and never grants fishing, retention, shoreline entry, parking, launching or safe-navigation permission.
Check the official Finland fishing regulations →
Metsähallitus Eräluvat current fishing guidance →
Check special-area and water-specific rules →
Check official shore-access information →
Korppoon - Houtskarin ulkosaaristoalue - Sector 10 is about 238 ft (73 m) deep at its deepest point. The depth chart comes from EMODnet, with national hydrographic source-reference audit official hydrographic-chart depth models, so the contours are chart-derived rather than computer-modeled; no directly measured sounding coverage is claimed.
Korppoon - Houtskarin ulkosaaristoalue - Sector 10 on syvimmillään noin 73 metriä (238 jalkaa). Syvyydet perustuvat todellisiin luotauksiin.
Official coastal monitoring from Finland national fisheries and coastal monitoring agencies informs the european perch, zander, northern pike, atlantic herring, european whitefish, european flounder, sea trout, european smelt roster for Korppoon - Houtskarin ulkosaaristoalue - Sector 10. 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.
Weed flat is the top-rated area: a weed flat in about 6 ft of water that rates prime for european perch in spring. The interactive chart above rates every spot for each species and season.
For european perch, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Korppoon - Houtskarin ulkosaaristoalue - Sector 10 is regulated by the Kalastusrajoitus.fi (official current Finnish fishing-restriction service). Check the official Finland regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Örön ja Jurmon välinen ulkosaaristoalue - North West 4 mi · Korppoon - Houtskarin ulkosaaristoalue - Sector 09 8 mi · Korppoon - Houtskarin ulkosaaristoalue - Sector 07 8 mi · Gullkronan selän ulkosaaristoalue - Central West 9 mi · Örön ja Jurmon välinen ulkosaaristoalue - North 9 mi · Örön ja Jurmon välinen ulkosaaristoalue - Central West 10 mi · Korppoon - Houtskarin ulkosaaristoalue - Sector 06 11 mi · Korppoon - Houtskarin ulkosaaristoalue - Sector 13 13 mi · Korppoon - Houtskarin ulkosaaristoalue - Sector 12 13 mi · Örön ja Jurmon välinen ulkosaaristoalue - Central 14 mi · Kannskärsfjärden - North 15 mi · Gullkronan selän ulkosaaristoalue - North West 15 mi
See how Korppoon - Houtskarin ulkosaaristoalue - Sector 10 stacks up: best zander lakes in Finland · best northern pike lakes in Finland · best european perch lakes in Finland · best sea trout lakes in Finland
Browse all Finland fishing maps. See every water on DepthScout. Bathymetry credit: EMODnet, with national hydrographic source-reference audit EMODnet Bathymetry DTM 2024 mean-depth grid — official Finnish hydrographic chart/DTM assessed (Lowest Astronomical Tide (LAT); 99% from official hydrographic-chart depth models, 1% source-interpolated; no directly measured sounding coverage is claimed). 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.