Boat Lake
44.7259° N, 81.2271° W
Depth contours from the 1968 government survey. Not for navigation.
Download the depth map (SVG)Boat Lake, Ontario. 44.7259° N, 81.2271° W
Maximum depth 1.5 m (1968 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/boat-lake/, compiled October 9, 2026
- Canadian Geographical Names Database, Natural Resources Canada. Contains information licensed under the Open Government Licence – Canada.
- HydroLAKES v1.0, Messager et al. 2016 / WWF HydroSHEDS. Licensed under CC BY 4.0.
- Census boundaries and population, 2021, Statistics Canada. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada.
- Aquatic Resource Area survey points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- Fishing access points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- Fisheries Management Zones, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- Lake Partner Program, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
- Bathymetry lines and survey index, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- City page weather forecasts and alerts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
- Air Quality Health Index observations and forecasts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Boat Lake is 1.5 m deep at its deepest point, shallower than 99% of the 2,688 surveyed lakes in Ontario. It covers 5.41 km² and lies 1 km northwest of South Bruce Peninsula.
Government surveys have recorded 23 fish species here, including northern pike, smallmouth bass and yellow perch.
- Maximum depth
- 1.5 msurveyed 1968
- shallower than 99% of the 2,688 surveyed lakes in Ontario
- Area
- 5.41 km²
- larger than 92% of the 18,731 lakes in Ontario
- Shoreline
- 13.1 km
- longer than 80% of the 18,731 lakes in Ontario
- Water clarity
- 1.7 mSecchi depth, 1995
- less clear than 92% of the 1,251 monitored lakes in Ontario
- Fish species
- 23
- more than 98% of the 2,454 surveyed lakes in Ontario
- Elevation
- 183 m
Today on the water
9 °C
Observed at South Bruce Peninsula, as of 3:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.3 m. Around 9 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.
| Time | 4 a.m. | 7 a.m. | 10 a.m. | 1 p.m. | 4 p.m. | 7 p.m. | 10 p.m. | 1 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | NW 20 | NW 20 | NW 30 | NW 30 | NW 30 | NE 10 | E 10 | SE 10 |
| Gusts km/h | 40 | 40 | 50 | 50 | 50 | |||
| Waves (est.) m | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | |||
| Temp. °C | 4 | 6 | 10 | 13 | 15 | 13 | 9 | 6 |
| Precip. % | 40 | 40 | 40 | 20 | 20 | 0 | 0 | 0 |
Tonight: Partly cloudy with 60 percent chance of showers. Wind northwest 30 km/h gusting to 50. Low plus 4.
Weather: South Bruce Peninsula (local forecast), as of 3:01 a.m. EDT
Sun and moon
- Civil dawn
- 7:03 a.m.
- Sunrise
- 7:32 a.m.
- Sunset
- 6:50 p.m.
- Civil dusk
- 7:19 p.m.
- Moonrise
- 6:25 a.m.
- Moonset
- 6:09 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
2 low risk
Tiverton, as of 3:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Depth
The government depth survey from 1968 records a maximum depth of 1.5 m, drawn from 2 depth contours.
- Download the depth map (SVG)Printing this page gives the map on one sheet, with scale and sources.
Not for navigation. Depths are from government surveys and may be outdated.
Fish
Sport fish by the share of the 29 government surveys (1968–2012) that recorded them.
Forage fish and other species (15)
Forage fish
- Bluntnose Minnow 8
- Common Shiner 3
- Golden Shiner 3
- Iowa Darter 3
- Mimic Shiner 3
- Tadpole Madtom 3
- Blacknose Shiner 2
- Blackchin Shiner 1
- Central Mudminnow 1
- Least Darter 1
Other
- Bowfin 17
- White Sucker 13
- Brown Bullhead 5
- Common Carp 4
- Greater Redhorse 1
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 5 species from Boat Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Largemouth Bass | 30-35 cm | 16 | 12 | Mercury, PFAS |
| Northern Pike | 55-60 cm | 16 | 8 | Mercury |
| Smallmouth Bass | 35-40 cm | 16 | 8 | Mercury, PFAS |
| Walleye | 40-45 cm | 16 | 8 | Mercury |
| Yellow Perch | 20-25 cm | 32 | 12 | – |
* As defined in the guide, including children and people who are or may become pregnant. Limits are for the length the guide lists most often; they change with the size of the fish. Read the official guide
Fishing regulations: Fisheries Management Zone 16. Check seasons and limits before you fish.
Getting on the water
1 listed boat launch; 1 with parking listed. marks launches on the map.
- Pike River.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.