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Fishing Llyn Alaw: what the data says
762-acre lake near Isle of Anglesey. The lake tops out around 18 ft. The chart is a model: real shoreline, published maximum depth, interpolated in between. A planning tool, never a navigation product. Here is how the season plays out for each species, straight from the data behind the map.
Llyn Alaw maps at 760 acres behind 8.1 miles of shoreline. A middling shoreline index (2.1) gives it some bays to work without being a maze. Roughly 89% of the water is 15 ft or less as modeled, the band where the food chain lives.
Brown Trout fishing at Llyn Alaw
Spring puts brown trout in skinny water — 2 to 18 ft is the zone. Summer fish stay in 5 to 18 ft, and winter fish hold in 3 to 18 ft. Break off the point is the standout, a drop-off at roughly 8 ft, rated prime for summer brown trout. Plan around after dark and early morning in the warm months. A spoon at the thermocline or a deep stickbait (night) covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 18 ft | dawn & dusk | Main-lake point (8 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 5 to 18 ft | night & dawn | Break off the point (8 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 3 to 18 ft | dusk & dawn | Main-lake point (8 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 3 to 18 ft | dawn | Break off the point (8 ft) | Jigging spoon, Small stickbait (slow) |
European Perch fishing at Llyn Alaw
Early season european perch use the shallows, holding in 3 to 12 ft. Summer is a 5 to 18 ft game here, winter a 5 to 18 ft one. The chart's best answer is Shallow bay flat — weed flat, 3 ft, 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.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (3 ft) | Small jig + curly tail, Inline spinner #1-2 |
| Summer | 5 to 18 ft | dawn | Deep basin (15 ft) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Fall | 5 to 18 ft | midday | Deep basin (15 ft) | Jigging spoon (small), Drop-shot on deep flats |
| Winter | 5 to 18 ft | midday & dawn | Deep basin (15 ft) | Tungsten jig + maggots, Small balance jig |
Northern Pike fishing at Llyn Alaw
Come spring, look for northern pike tight to the bank in 2 to 8 ft. They move out to 5 to 18 ft in summer and finish the year down in 5 to 15 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 3 ft 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.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (3 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 5 to 18 ft | dawn & dusk | Break off the point (8 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Break off the point (8 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (3 ft) | Tip-ups, Large jigging spoon |
Notable structure
- Deep basin: deep basin, around 15 ft
- Main-lake point: point, around 8 ft
- Secondary point: point, around 8 ft
- Break off the point: drop-off, around 8 ft
- Shallow bay flat: weed flat, around 3 ft
- Back-bay flat: weed flat, around 3 ft
Common questions
How deep is Llyn Alaw?
Llyn Alaw is about 18 ft (5 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.
What fish are in Llyn Alaw?
Anglers target northern pike, european perch, brown trout on Llyn Alaw. 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 Llyn Alaw?
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. Open the map above to see every rated spot for each species and season.
When is the best time to fish Llyn Alaw?
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.
Nearby waters
Llyn yr Wyth-Eidion 6 mi · Llyn Cadarn 7 mi · Llyn Dinam 8 mi · Llyn Penrhyn 8 mi · Llyn Coron 10 mi · Llyn Padarn 19 mi · Llyn Peris 21 mi · Llyn Anafon 22 mi · Llyn Cwellyn 22 mi · Llyn Idwal 23 mi · Llyn Ogwen 23 mi · Llynnau Cwm Silyn 23 mi
See how Llyn Alaw stacks up: best northern pike lakes in United Kingdom · best european perch lakes in United Kingdom · best brown trout lakes in United Kingdom
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