Sign inSign up freeRecent catches at Syvänsi
Shared by DepthScout anglers. Exact spots stay private, always.
Fishing Syvänsi: what the data says
3,687-acre lake in Finland. The lake tops out around 115 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. What follows comes from the same scoring engine that paints the spots above.
Traced from the shoreline, Syvänsi runs 3,947 acres with 36 miles of edge. With a shoreline index of 4.1, this water is all arms and coves — edge habitat well beyond its acreage. About 55% of the surface sits shallower than 15 ft — that's the weed-and-bait zone.
Ilmainen interaktiivinen kalastuskartta — Syvänsi, Suomi: syvyyskäyrät todellisista syvyysmittauksista 35 metriin (115 jalkaa) asti, parhaat kalapaikat lajeille ahven, hauki, kuha ja muut. Syvyyskartta on mallinnettu järven todellisesta rantaviivasta ja suurimmasta syvyydestä — käytä sitä suuntaa-antavana, älä koskaan navigointiin.
European Perch fishing at Syvänsi
In spring, european perch run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 8 to 28 ft, and winter fish settle into 12 to 33 ft. Weed flat is the standout, a weed flat at roughly 7 ft, rated prime for spring european perch. Time it for early morning. You won't need more than a drop-shot micro plastics or a small crankbait (perch pattern) most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Weed flat (7 ft) | Small jig + curly tail, Inline spinner #1-2 |
| Summer | 8 to 28 ft | dawn | Sharp break (11 ft) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Fall | 10 to 33 ft | midday | Sharp break (11 ft) | Jigging spoon (small), Drop-shot on deep flats |
| Winter | 12 to 33 ft | midday & dawn | Sharp break (11 ft) | Tungsten jig + maggots, Small balance jig |
Northern Pike fishing at Syvänsi
In spring, northern pike run shallow here, mostly 2 to 8 ft. Midsummer fish sit out in 8 to 20 ft before dropping to 5 to 15 ft for winter. Spring northern pike concentrate at Shallow bay flat, a prime-rated weed flat around 2 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a bucktail or a weedless spoon over cabbage most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (2 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Weed flat (7 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Sharp break (11 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Weed flat (7 ft) | Tip-ups, Large jigging spoon |
Zander fishing at Syvänsi
In spring, zander run shallow here, mostly 4 to 15 ft. Summer pushes them deeper, 15 to 35 ft, and winter fish settle into 20 to 40 ft. Sharp break is the standout, a drop-off at roughly 11 ft, rated prime for fall zander. Time it for the evening and early morning. You won't need more than a vertical softbait over humps or a deep crankbait most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Rock reef (3 ft) | Softbait on jighead (10-12 cm), Shallow crankbait at dusk |
| Summer | 15 to 35 ft | dusk & dawn | Secondary point (13 ft) | Vertical softbait over humps, Deep crankbait |
| Fall | 12 to 40 ft | dusk & night | Sharp break (11 ft) | Big softbait (12-16 cm) slow-rolled, Jigging spoon |
| Winter | 20 to 40 ft | dusk & dawn | Deep basin (92 ft) | Vertical jig / mormyshka with bait, Slow blade bait |
Lake Whitefish fishing at Syvänsi
Come spring, look for lake whitefish tight to the bank in 15 to 45 ft. They move out to 40 to 90 ft in summer and finish the year down in 25 to 70 ft. If you only fish one area, make it Deep basin: a deep basin around 92 ft that scores prime in summer. Best bite is early morning. A blade bait vertical or a small jigging spoon is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Shallow feeding flat (23 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 40 to 90 ft | dawn | Deep basin (92 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Rock reef (3 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Sharp break (48 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Burbot fishing at Syvänsi
The spring pattern is a shallow one: burbot in 25 to 70 ft. Midsummer fish sit out in 35 to 115 ft before dropping to 15 to 60 ft for winter. The spot to know is Deep basin, a deep basin in about 92 ft of water that rates prime for burbot in summer. Plan around after dark and midday in the warm months. Summer baits: a heavy jig + cut bait gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Sharp break (48 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 35 to 115 ft | night & midday | Deep basin (92 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Sharp break (48 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Rock reef (3 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Notable structure
- Deep basin: deep basin, around 92 ft
- Sharp break: drop-off, around 48 ft
- Shallow feeding flat: feeding flat, around 23 ft
- Shallow feeding flat: feeding flat, around 14 ft
- Secondary point: point, around 13 ft
- Sharp break: drop-off, around 11 ft
- Shoreline point: point, around 10 ft
- Shoreline point: point, around 8 ft
- Weed flat: weed flat, around 7 ft
- Rock reef: rock pile, around 3 ft
- Rock reef: rock pile, around 3 ft
- Main-lake point: point, around 2 ft
- Shallow bay flat: weed flat, around 2 ft
- Back-bay flat: weed flat, around 2 ft
Syvänsi fishing regulations
Season dates, license requirements, and size and bag limits for Finland waters are set by the Kalastusrajoitus.fi (official Finnish restriction service) — and special regulations can apply to Syvänsi specifically, so confirm the current rules before you fish.
Check the official Finland fishing regulations →
Common questions
How deep is Syvänsi?
Syvänsi is about 115 ft (35 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Syvänsi?
Anglers target zander, northern pike, european perch, lake whitefish, burbot on Syvänsi. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.
Where is the best fishing spot on Syvänsi?
Weed flat is the top-rated area: a weed flat in about 7 ft of water that rates prime for european perch in spring. Scroll up to the map for the complete spot list by species and season.
When is the best time to fish Syvänsi?
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.
What are the fishing regulations for Syvänsi?
Fishing on Syvänsi is regulated by the Kalastusrajoitus.fi (official Finnish 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.
Nearby waters
Vihtajärvi 2 mi · Pieni-Rummukka 2 mi · Suuri-Kaislanen 3 mi · Syrjäjärvi 3 mi · Iso-Rummukka 3 mi · Ahvenlampi 4 mi · Hiidenlampi 4 mi · Peipunen 6 mi · Saarikko 8 mi · Ruokojärvi 8 mi · Kukkarojärvi 9 mi · Suuri-Läänä 10 mi
See how Syvänsi stacks up: best zander lakes in Finland · best northern pike lakes in Finland · best european perch lakes in Finland · best lake whitefish lakes in Finland
Browse all Finland fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.