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102-acre lake in Nipissing District, Ontario. The lake tops out around 53 ft. The depth data here comes from the Ontario MNRF survey of 1989 (a transect sounding survey). Here is how the season plays out for each species, straight from the data behind the map.
Drawn out, this is 102 acres of water rimmed by 3.6 miles of bank — one island included. An index of 2.6 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. Littoral water — the productive band under ~15 ft — makes up 38% of this chart. Tip to tip the water measures near 0.8 mi with a 0.5-mi widest point. You'll find it in Nipissing District. For a second option, Loft Lake lies 1 mi northwest.
When the water first warms, yellow perch slide up into 3 to 12 ft. Summer is a 10 to 30 ft game here, winter a 15 to 35 ft one. Start at Shallow bay flat. It's a weed flat holding about 7 ft of water and rates prime come spring. The feeding windows run early morning. Keep a drop-shot micro plastics or a small spoon tipped with worm rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (7 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Shallow bay flat (7 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (3 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (51 ft) | Tungsten jig + spikes, Rattle spoon (small) |
The chart marks 6 structure features on Rainbow Lake; the deepest is Deep basin at about 51 ft.
Season dates, license requirements, and size and bag limits for Ontario waters are set by the Ontario fishing regulations (FMZ summary) — and special regulations can apply to Rainbow Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Rainbow Lake is about 53 ft (16 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1989 (a transect sounding survey).
Anglers target yellow perch on Rainbow Lake.
Shallow bay flat is the top-rated area: a weed flat in about 7 ft of water that rates prime for yellow perch in spring. The map above holds the full rated-spot list for every species and season.
For yellow 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 Rainbow Lake is regulated by the Ontario fishing regulations (FMZ summary). Check the official Ontario regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Loft Lake 1 mi · Tepee Lake 2 mi · Groundhog Lake 2 mi · Joe Lake 2 mi · Potter Lake 2 mi · Red Lake 3 mi · Canoe Lake 3 mi · Lupus Lake 3 mi · Little Joe Lake 3 mi · Tom Thomson Lake 3 mi · Drummer Lake 4 mi · Littledoe Lake 4 mi
See how Rainbow Lake stacks up: best yellow perch lakes in Ontario
More water nearby: Nipissing District fishing maps (683 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.