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Rating depth structure for northern pike.
Recent public catches load as you reach this section.
712-acre lake near Kårsta. The lake tops out around 13 m. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. The season-by-season read for each species follows, from the map's own numbers.
Sparren mäter 299 hektar bakom 23 km strandlinje. Strandlinjen är kraftigt flikig (index 3.8) — vikar och uddar överallt, vilket mångdubblar den fiskbara kanten. Cirka 75% av vattnet är ~5 m eller grundare, zonen där näringskedjan bor. Från ände till ände mäter vattnet ungefär 6.4 km, som bredast 3.2 km. Vattnet hör till Vallentuna kommun. Närmaste kartlagda vatten är Långsjön, 4.8 km åt norr.
Gratis interaktiv fiskekarta — Sparren, Sverige: ungefärliga djupkurvor ner till 13 m (44 fot), och de bästa fiskeplatserna för abborre och gädda. Djupkartan är modellberäknad från sjöns verkliga strandlinje och största djup — använd den som vägledning, aldrig för navigation.
Early season european perch use the shallows, holding in 1 to 3.5 m. Summer is a 2.5 to 8.5 m game here, winter a 3.5 to 10 m one. The chart's best answer is Shallow bay flat — weed flat, 1.5 m, prime for spring. Best bite is early morning. Tie on a drop-shot micro plastics or a small crankbait (perch pattern) and you're in the game.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 1 to 3.5 m | midday & dawn | Shallow bay flat (1.5 m) | Small jig + curly tail, Inline spinner #1-2 |
| Sommar | 2.5 to 8.5 m | dawn | Shallow bay flat (1.5 m) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Höst | 3 to 10 m | midday | Deep basin (11 m) | Jigging spoon (small), Drop-shot on deep flats |
| Vinter | 3.5 to 10 m | midday & dawn | Deep basin (11 m) | Tungsten jig + maggots, Small balance jig |
Come spring, look for northern pike tight to the bank in 0.5 to 2.5 m. They move out to 2.5 to 6 m in summer and finish the year down in 1.5 to 4.5 m. If you only fish one area, make it Shallow bay flat: a weed flat around 1.5 m that scores prime in spring. Best bite is early morning and the evening. A bucktail or a weedless spoon over cabbage is the honest summer answer here.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 0.5 to 2.5 m | midday & dawn | Shallow bay flat (1.5 m) | #5 inline spinner, Spoon (red/white) |
| Sommar | 2.5 to 6 m | dawn & dusk | Main-lake point (3.5 m) | Bucktail, Weedless spoon over cabbage |
| Höst | 2 to 5.5 m | midday & dawn | Shallow bay flat (1.5 m) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Vinter | 1.5 to 4.5 m | midday | Shallow bay flat (1.5 m) | Tip-ups, Large jigging spoon |
The spring pattern is a shallow one: roach in 0.5 to 3 m. As the season builds they drop to 1 to 5.5 m, wintering in 3.5 to 11 m. Top water on the chart: Shallow bay flat, a weed flat in the 1.5 m range, prime in spring. Time it for early morning and the evening. Summer baits: a tiny spoon or a micro jig gets it done.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 0.5 to 3 m | midday & dusk | Shallow bay flat (1.5 m) | Micro jig under a float |
| Sommar | 1 to 5.5 m | dawn & dusk | Shallow bay flat (1.5 m) | Tiny spoon, Micro jig |
| Höst | 2.5 to 8.5 m | midday | Main-lake point (3.5 m) | Tiny jig, Small silver spoon |
| Vinter | 3.5 to 11 m | midday | Deep basin (11 m) | Tungsten mormyshka |
The spring pattern is a shallow one: rudd in 0.5 to 2.5 m. Midsummer fish sit out in 0.5 to 3.5 m before dropping to 3.5 to 9 m for winter. The spot to know is Shallow bay flat, a weed flat in about 1.5 m of water that rates prime for rudd in spring. Plan around early morning and the evening in the warm months. Summer baits: a tiny surface fly or a micro spoon gets it done.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 0.5 to 2.5 m | midday & dusk | Shallow bay flat (1.5 m) | Micro jig, Tiny dry fly |
| Sommar | 0.5 to 3.5 m | dawn & dusk | Shallow bay flat (1.5 m) | Tiny surface fly, Micro spoon |
| Höst | 1.5 to 5.5 m | midday | open water | Micro jig |
| Vinter | 3.5 to 9 m | midday | Deep basin (11 m) | Tiny mormyshka |
When the water first warms, ruffe slide up into 1 to 4.5 m. Summer is a 3 to 9 m game here, winter a 4.5 to 12 m one. Start at Deep basin. It's a deep basin holding about 11 m of water and rates prime come winter. The feeding windows run early morning and the evening. Keep a micro jig rigged through the warm months.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 1 to 4.5 m | dusk | Creek inflow (1 m) | Tiny bottom jig |
| Sommar | 3 to 9 m | dawn & dusk | Deep basin (11 m) | Micro jig |
| Höst | 3.5 to 11 m | dusk | Deep basin (11 m) | Tiny jigging spoon |
| Vinter | 4.5 to 12 m | dusk | Deep basin (11 m) | Tungsten mormyshka |
When the water first warms, tench slide up into 0.5 to 3 m. Summer is a 1 to 3.5 m game here, winter a 3.5 to 9 m one. Start at Shallow bay flat. It's a weed flat holding about 1.5 m of water and rates prime come spring. The feeding windows run early morning and the evening.
| Säsong | Djup | Bästa tid | Börja vid | Beten |
|---|---|---|---|---|
| Vår | 0.5 to 3 m | dusk | Shallow bay flat (1.5 m) | |
| Sommar | 1 to 3.5 m | dawn & dusk | Shallow bay flat (1.5 m) | |
| Höst | 2 to 5.5 m | midday | open water | |
| Vinter | 3.5 to 9 m | midday | Deep basin (11 m) |
Count 7 structure marks on this chart. The deepest, Deep basin, sits near 11 m.
Season dates, license requirements, and size and bag limits for Sweden waters are set by the Svenska Fiskeregler (official Swedish rules service) — and special regulations can apply to Sparren specifically, so confirm the current rules before you fish.
Check the official Sweden fishing regulations →
Sparren is about 44 ft (13 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Sparren är som djupast cirka 13 meter (44 fot). Djupkartan är modellberäknad från sjöns verkliga strandlinje — använd den som vägledning, aldrig för navigation.
Anglers target european perch, northern pike, roach, rudd, ruffe, tench on Sparren.
Shallow bay flat is the top-rated area: a weed flat in about 5 ft of water that rates prime for european perch in spring. Every other rated spot, per species and season, is on the map above.
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 Sparren is regulated by the Svenska Fiskeregler (official Swedish rules service). Check the official Sweden regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Långsjön 3 mi · Rösjön 3 mi · Viren 4 mi · Skären 5 mi · Skedviken 6 mi · Syningen 6 mi · Långsjön 7 mi · Malmsjön 7 mi · Björndalssjön 7 mi · Svulten 8 mi · Fastarbysjön 8 mi · Blågården 8 mi
See how Sparren stacks up: best northern pike lakes in Sweden · best european perch lakes in Sweden
More water nearby: Vallentuna Municipality fishing maps (17 charts). Browse all Sweden fishing maps. See every water on DepthScout. 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.