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466-acre lake near Québec. The lake tops out around 35 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. Here is how the season plays out for each species, straight from the data behind the map.
Carte de pêche interactive gratuite — Lac des Îles, Québec : courbes de profondeur issues de relevés bathymétriques réels jusqu'à 11 m (35 pi), les meilleurs sites pour doré jaune, grand brochet et perchaude, fenêtres d'activité saisonnières et choix d'appâts. Aucune inscription requise. Les profondeurs proviennent de la Géobase des bathymétries de lac du Québec (MELCCFP) lorsque disponibles.
In spring, walleye run shallow here, mostly 4 to 15 ft. By summer they slide out to 15 to 35 ft, and by winter most fish are in 11 to 35 ft. Break off the point is the standout, a drop-off at roughly 14 ft, rated prime for fall walleye. 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 | 15 to 35 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 11 to 35 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 11 to 35 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
In spring, northern pike run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 5 to 15 ft. Shallow bay flat is the standout, a weed flat at roughly 2 ft, rated prime for spring northern pike. Best bite is early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.
| 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 |
Start shallow in spring: yellow perch sit in 3 to 12 ft that time of year. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. If you only fish one area, make it Back-bay flat: a weed flat around 3 ft that scores prime in spring. In summer the feeding windows fall in 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 | 10 to 30 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
How deep is Lac des Îles?
Lac des Îles is about 35 ft 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 Lac des Îles?
Anglers target walleye, northern pike, yellow perch on Lac des Îles.
Where is the best fishing spot on Lac des Îles?
Break off the point is the top-rated area: a drop-off in about 14 ft of water that rates prime for walleye in fall. Open the map above to see every rated spot for each species and season.
When is the best time to fish Lac des Îles?
For walleye, the summer bite is best in the evening 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.
Lac Thor · Lac des Ours · Grand lac Saint-François · Petit lac Lambton · Lac Elgin · Lac Aylmer
See how Lac des Îles stacks up: best walleye lakes in Québec · best northern pike lakes in Québec · best yellow perch lakes in Québec
Browse all Québec fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.