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Ontario Fish Finder
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About Ontario Fish Finder

Less searching.
More fishing.

Get to know the water before you go. Discover Ontario lakes, explore fish species, and bring your next trip into focus.

Explore the map → Our story ↓

Free to explore · Independent · Built for Ontario

Why it started

A fishing trip should start with possibility.
Not a dozen open tabs.

Ontario Fish Finder started from a simple frustration: planning a fishing trip meant piecing together government tools, maps, and PDFs. One for fish species. Another for lake depth. More for regulations and consumption advisories.

The idea was simple: bring that information together around the place you want to fish, so you can spend less time searching and more time planning a day on the water.

See where the data comes from →

Free to explore

Open the map and start discovering. No account is needed to browse lakes and fish species.

Independent by design

An independent project that brings public information together, with links back to its sources.

Built for Ontario

From lake profiles to fishing zones, the focus stays on helping you explore Ontario’s waters.

Ontario Fish Finder map showing the Lake Nipissing area
A look inside the map. Select a lake to explore the information available for it.
From curiosity to a plan

Your next trip
starts here.

  1. Find your water

    Explore the map or browse the lake directory for a place that catches your eye.

  2. Get to know the lake

    Explore recorded fish species, depth, and other available lake information in one place.

  3. Check before you go

    Find the fishing zone and follow the official sources for regulations and advisories.

Take a look around →
Data & trust

Official data, not guesswork

Know what you’re looking at, and where it comes from. These are the sources behind the lake information, regulations, weather, and observations you can explore.

01 / Lake information ↗Fish ON-Line / Aquatic Resource AreaOntario Ministry of Natural Resources — lake characteristics and recorded fish species. 02 / Fishing rules ↗Fishing Regulations SummaryCheck the official seasons, limits, sanctuaries, and waterbody exceptions before your trip. 03 / Conditions ↗GeoMet OGC-APIEnvironment Canada — weather and water-level information, where available. 04 / Observations ↗iNaturalistResearch-grade community fish observations that add context to your exploration.

A useful starting point. Coverage and update schedules vary by source. Missing records don’t mean a species is absent, and a dataset snapshot is not a new lake survey. Ontario Fish Finder is an independent project, not an official government service.

All Ontario data © King's Printer for Ontario, released under the Open Government Licence – Ontario. Base maps © OpenStreetMap contributors. Not a legal document — always confirm seasons, limits and sanctuaries in the official Ontario Fishing Regulations Summary before you head out.

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There’s more water to discover

Find your next fishing spot.

A familiar lake or somewhere completely new. Start exploring.

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