Lake depth chart
Today's read
Shared by DepthScout anglers. Exact spots stay private, always.
47,370-acre section. The Toronto waterfront and Toronto Islands: a strong spring and fall salmon and trout troll, with pike, bass and panfish in the sheltered Inner Harbour and island lagoons. The lake tops out around 361 ft. The depth chart is built from real NOAA hydrographic survey soundings, so the humps, channels and drop-offs you see are measured, not guessed. Below is the species-by-species picture, pulled from the same data the map uses.
The drawn water covers 47,586 acres wrapped in 57.9 miles of bank, broken up by an island. A middling shoreline index (1.9) gives it some bays to work without being a maze. Littoral water — the productive band under ~15 ft — makes up 7% of this chart. End to end it runs roughly 18.8 mi, about 8.5 mi across. If the bite dies, Grenadier Pond is 7 mi to the west.
Early season chinook salmon use the shallows, holding in 5 to 40 ft. Expect a summer slide to 50 to 120 ft, then a winter hold in 30 to 90 ft. Put Humber River mouth first on the milk run — an inflow / creek mouth near 7 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a flasher + fly (green/white) or a magnum spoon on downrigger and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 40 ft | dawn & dusk | Humber River mouth (7 ft) | Trolled spoon (orange/gold), Stickbait off planer boards |
| Summer | 50 to 120 ft | dawn & dusk | Sharp break (65 ft) | Flasher + fly (green/white), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dawn & dusk | Humber River mouth (7 ft) | J-plug (glow), Flasher + fly |
| Winter | 30 to 90 ft | midday | Sharp break (65 ft) | Small spoon on a slow troll, Stickbait deep |
Spring coho salmon on Lake Ontario - Toronto Waterfront hold shallow, usually 3 to 25 ft. They move out to 30 to 70 ft in summer and finish the year down in 20 to 60 ft. Put Humber River mouth first on the milk run — an inflow / creek mouth near 7 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a dodger + fly or a medium spoon above the thermocline.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Humber River mouth (7 ft) | Small orange dodger + peanut fly, Thin spoon (orange/silver) |
| Summer | 30 to 70 ft | dawn & dusk | Sharp break (65 ft) | Dodger + fly, Medium spoon above the thermocline |
| Fall | 8 to 40 ft | dawn & dusk | Humber River mouth (7 ft) | Casting spoon, Spinner (chartreuse) |
| Winter | 20 to 60 ft | midday | Sharp break (22 ft) | Small spoon, slow troll |
Start shallow in spring: steelhead sit in 3 to 20 ft that time of year. Warm water sends them out to 5 to 45 ft; cold water stacks them in 4 to 15 ft. Top water on the chart: Humber River mouth, an inflow / creek mouth in the 7 ft range, prime in spring. Fish it in early morning and the evening and you'll meet the bite. Throw an orange dodger + fly high in the column or a thin spoon off boards until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 20 ft | dawn & dusk | Humber River mouth (7 ft) | Small spoon or spinner at the mouths, Jig + waxworm under float |
| Summer | 5 to 45 ft | dawn & dusk | Sharp break (22 ft) | Orange dodger + fly high in the column, Thin spoon off boards |
| Fall | 5 to 30 ft | dawn & dusk | Humber River mouth (7 ft) | Spinner (silver/blue), Casting spoon |
| Winter | 4 to 15 ft | midday | Humber River mouth (7 ft) | Float jig (black/purple), Bead rig |
The spring pattern is a shallow one: brown trout in 3 to 25 ft. Midsummer fish sit out in 25 to 60 ft before dropping to 5 to 35 ft for winter. The spot to know is Humber River mouth, an inflow / creek mouth in about 7 ft of water that rates prime for brown trout in spring. Plan around after dark and early morning in the warm months. Summer baits: a spoon at the thermocline or a deep stickbait (night) gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Humber River mouth (7 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 25 to 60 ft | night & dawn | Sharp break (37 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 5 to 30 ft | dusk & dawn | Humber River mouth (7 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 5 to 35 ft | dawn | Humber River mouth (7 ft) | Jigging spoon, Small stickbait (slow) |
Spring lake trout on Lake Ontario - Toronto Waterfront hold shallow, usually 10 to 40 ft. By summer they slide out to 50 to 120 ft, and by winter most fish are in 20 to 80 ft. The chart's best answer is Rock reef — rock pile, 9 ft, prime for fall. Prime time lands in early morning. The summer box starts with a white tube jig (deep) or a magnum spoon on downrigger.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Shoreline point (16 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 50 to 120 ft | dawn | Offshore hump (53 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Rock reef (9 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Offshore hump (38 ft) | White tube jig, Airplane jig |
Early season smallmouth bass use the shallows, holding in 3 to 12 ft. Summer is a 10 to 30 ft game here, winter a 20 to 45 ft one. The chart's best answer is Rock reef — rock pile, 9 ft, prime for spring. Best bite is early morning and the evening. Tie on a drop shot (goby/minnow) or a ned rig and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Rock reef (9 ft) | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Rock reef (9 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Shoreline point (16 ft) | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Sharp break (22 ft) | Blade bait, Hair jig |
Lake Ontario - Toronto Waterfront also holds northern pike (8 to 20 ft in summer), yellow perch (10 to 30 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Count 24 structure marks on this chart. The deepest, Deepest basin, sits near 360 ft.
Access data: Geospatial Ontario - Fishing Access Points. Confirm conditions and fees locally before you launch.
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 Lake Ontario - Toronto Waterfront specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Lake Ontario - Toronto Waterfront is about 361 ft (110 m) deep at its deepest point. The depth chart here comes from real NOAA hydrographic surveys, so the contours reflect measured depths.
Anglers target chinook salmon, coho salmon, steelhead, brown trout, lake trout, smallmouth bass, northern pike, yellow perch on Lake Ontario - Toronto Waterfront.
Humber River mouth is the top-rated area: an inflow / creek mouth in about 7 ft of water that rates prime for chinook salmon in spring. The interactive chart above rates every spot for each species and season.
For chinook salmon, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Lake Ontario - Toronto Waterfront 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.
Grenadier Pond 7 mi · Philips Lake 22 mi · Thompson Lake 22 mi · Bond Lake 23 mi · Wilcox Lake 23 mi · Simeon Lake 24 mi · Haynes Lake 24 mi · St. George Lake 24 mi · Loafers Lake 25 mi · Heart Lake 25 mi · Lake Seneca 25 mi · Preston Lake 25 mi
See how Lake Ontario - Toronto Waterfront stacks up: best smallmouth bass lakes in Ontario · best northern pike lakes in Ontario · best yellow perch lakes in Ontario · best chinook salmon lakes in Ontario
Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: NOAA hydrographic surveys. 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.