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794-acre lake near Ontario. The lake tops out around 28 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. What follows comes from the same scoring engine that paints the spots above.
Spring cisco (lake herring) on Guernsey Lake hold shallow, usually 7 to 28 ft. Summer fish stay in 8 to 28 ft, and winter fish hold in 8 to 28 ft. The spot to know is Deep basin, a deep basin in about 24 ft of water that rates prime for cisco (lake herring) in spring. In summer the feeding windows fall in early morning. Summer baits: a vertical flutter spoon (small) or a drop-shot micro plastic gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 7 to 28 ft | dawn & dusk | Small silver spoon, Tiny swim jig (white) |
| Summer | 8 to 28 ft | dawn | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Small casting spoon, Inline spinner (silver) |
| Winter | 8 to 28 ft | dawn | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Start shallow in spring: walleye sit in 4 to 15 ft that time of year. Summer pushes them deeper, 8 to 28 ft, and winter fish settle into 8 to 28 ft. The spot to know is Break off the point, a drop-off in about 13 ft of water that rates prime for walleye in fall. In summer the feeding windows fall in the evening and early morning. Tie on a crawler harness on bottom bouncer or a deep crankbait (trolled) and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 8 to 28 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 8 to 28 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 8 to 28 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Spring yellow perch on Guernsey Lake hold shallow, usually 3 to 12 ft. Summer pushes them deeper, 8 to 28 ft, and winter fish settle into 8 to 28 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. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 8 to 28 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 8 to 28 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 8 to 28 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Start shallow in spring: northern pike sit in 2 to 8 ft that time of year. By summer they slide out to 8 to 20 ft, and by winter most fish are 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. In summer the feeding windows fall in early morning and the evening. A bucktail or a weedless spoon over cabbage covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Tip-ups, Large jigging spoon |
How deep is Guernsey Lake?
Guernsey Lake is about 28 ft 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 Guernsey Lake?
Anglers target walleye, northern pike, yellow perch, cisco (lake herring) on Guernsey Lake.
Where is the best fishing spot on Guernsey Lake?
Deep basin is the top-rated area: a deep basin in about 24 ft of water that rates prime for cisco (lake herring) in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Guernsey Lake?
For cisco (lake herring), 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.
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See how Guernsey Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario · best yellow perch lakes in Ontario · best cisco (lake herring) lakes in Ontario
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