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3-acre lake near Cambridgeshire. The lake tops out around 7 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. Every species below gets its seasonal read from the same numbers driving the chart.
The outline encloses 3 acres, worked by 0.3 miles of shoreline. At index 1.3 the outline is almost a bowl — read the depth changes, not the shoreline. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. Cambridgeshire claims this one. Stewartby Lake sits 20 mi west — the closest neighbouring chart.
Spring puts brown trout in skinny water — 1 to 7 ft is the zone. Summer fish stay in 2 to 7 ft, and winter fish hold in 1 to 7 ft. Summer brown trout concentrate at Shoreline break, a prime-rated drop-off around 3 ft. Warm-month bites cluster around after dark and early morning. A spoon at the thermocline or a deep stickbait (night) covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 7 ft chart-limited; documented 3 to 25 ft | dawn & dusk | Shoreline break (3 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 2 to 7 ft chart-limited; documented 25 to 60 ft | night & dawn | Shoreline break (3 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 1 to 7 ft chart-limited; documented 5 to 30 ft | dusk & dawn | Shoreline break (3 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 1 to 7 ft chart-limited; documented 5 to 35 ft | dawn | Shoreline break (3 ft) | Jigging spoon, Small stickbait (slow) |
Early season european perch use the shallows, holding in 2 to 7 ft. Even in summer they hold at 2 to 7 ft; winter keeps them in 2 to 7 ft. Put Shallow bay flat first on the milk run — a weed flat near 3 ft that grades prime for spring. In summer the feeding windows fall in early morning. Tie on a drop-shot micro plastics or a small crankbait (perch pattern) and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 7 ft chart-limited; documented 3 to 12 ft | midday & dawn | Shallow bay flat (3 ft) | Small jig + curly tail, Inline spinner #1-2 |
| Summer | 2 to 7 ft chart-limited; documented 8 to 28 ft | dawn | Deep basin (6 ft) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Fall | 2 to 7 ft chart-limited; documented 10 to 33 ft | midday | Deep basin (6 ft) | Jigging spoon (small), Drop-shot on deep flats |
| Winter | 2 to 7 ft chart-limited; documented 12 to 33 ft | midday & dawn | Deep basin (6 ft) | Tungsten jig + maggots, Small balance jig |
Come spring, look for northern pike tight to the bank in 2 to 7 ft. Through summer count on 2 to 7 ft; the winter hold is 2 to 7 ft. Start at Shallow bay flat. It's a weed flat holding about 3 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A bucktail or a weedless spoon over cabbage is the honest summer answer here.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 7 ft chart-limited; documented 2 to 8 ft | midday & dawn | Shallow bay flat (3 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 2 to 7 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Shallow bay flat (3 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 2 to 7 ft chart-limited; documented 6 to 18 ft | midday & dawn | Shallow bay flat (3 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 2 to 7 ft chart-limited; documented 5 to 15 ft | midday | Shallow bay flat (3 ft) | Tip-ups, Large jigging spoon |
3 pieces of structure are mapped here — Deep basin, around 6 ft, is the deepest of them.
Decoy Lake, Arlington is about 7 ft (2 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.
Anglers target brown trout, european perch, northern pike on Decoy Lake, Arlington. 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.
Shallow bay flat is the top-rated area: a weed flat in about 3 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 brown trout, the summer bite is best in after dark and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Stewartby Lake 20 mi · Mitcham Pit 20 mi · Bonnington Lake 25 mi · Thrapston Lake 26 mi · Stanborough Lake 26 mi · North Metropolitan pit 30 mi · Marsworth Reservoir 34 mi · Tallington Lakes 38 mi · Eyebrook Reservoir 40 mi · Stradsett Hall Lake 40 mi · The Lake or Eleven Acre Lake 41 mi · Hollowell Reservoir 41 mi
See how Decoy Lake, Arlington stacks up: best northern pike lakes in United Kingdom · best european perch lakes in United Kingdom · best brown trout lakes in United Kingdom
Browse all United Kingdom 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.