Where is Thunder Bay?

Thunder Bay is on the Lake Superior shore of Ontario, Canada. It is roughly 66 miles in a straight line from Grand Marais.

What are the top things to do in Thunder Bay?

Hike the Top of the Giant Trail in Sleeping Giant Provincial Park to cliff-top lookouts high above Lake Superior — a full-day outing. See Kakabeka Falls, a short drive west, where the Kaministiquia River plunges into a deep gorge. Pause at the Terry Fox Memorial and Lookout east of the city, near where his Marathon of Hope ended in 1980.

How much time do you need in Thunder Bay?

Allow 2–3 days to explore Thunder Bay.

Coastal town · Lake Superior

Thunder Bay

An Ontario port city facing the Sleeping Giant across Lake Superior.

Photo: P199 · CC BY-SA 3.0

Thunder Bay skyline.JPG by P199 · CC BY-SA 3.0. Resized and converted to WebP; display crops vary.

Official website Plan a trip around it

On the coast

About Thunder Bay

Thunder Bay's waterfront looks out toward the distinctive Sleeping Giant landform. The city is a useful northern anchor for a Lake Superior road trip, pairing harbor walks with the region's fur-trade history at Fort William Historical Park. Park excursions and the drive east reward extra time rather than a quick overnight.

LakeLake Superior

RegionOntario

Representative coordinates48.3820, -89.2502

Live · Thunder Bay

What's going on right now.

Weather, alerts, the water, the sky and local headlines, gathered from official sources as you read.

Gathering the latest conditions…

National Weather Service Environment Canada NOAA buoy observations Aurora forecast

Live data from the U.S. National Weather Service, Environment and Climate Change Canada, NOAA's National Data Buoy Center and Space Weather Prediction Center; headlines link to the publishers. Sun and moon times are calculated. Conditions change quickly—check official forecasts before going on the water. Not for navigation.

Best time

June to September for long days on Sleeping Giant's trails; mid- to late September adds fall color to the drive east.

Time needed

2–3 days

Best months

Don't miss

Top things to do in Thunder Bay.

Hike the Top of the Giant Trail in Sleeping Giant Provincial Park to cliff-top lookouts high above Lake Superior — a full-day outing.
See Kakabeka Falls, a short drive west, where the Kaministiquia River plunges into a deep gorge.
Pause at the Terry Fox Memorial and Lookout east of the city, near where his Marathon of Hope ended in 1980.
Stroll Prince Arthur's Landing on the downtown waterfront for marina views and public art.

Know before you go

Tips for visiting Thunder Bay.

Carry a passport or other accepted travel document for the Pigeon River border crossing from Minnesota.
Thunder Bay keeps Eastern Time, an hour ahead of Minnesota — adjust plans and reservations accordingly.
Reserve Ontario Parks campsites at Sleeping Giant well ahead for summer weekends.

Great for Trails, cliffs & waterfalls Cities & culture Camping & dark skies

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Approximate town center (GeoNames 6166142); not an attraction entrance.

Black-and-white basemap by OpenStreetMap. Great Lakes highlighted in color. Hold Ctrl (or Command) while scrolling to zoom. Use two fingers on touch screens.

Lake outlines: Natural Earth (public domain). Town centers: GeoNames (CC BY 4.0). Not for navigation.

Good to know

Questions about Thunder Bay

Where is Thunder Bay?: Thunder Bay is on the Lake Superior shore of Ontario, Canada. It is roughly 66 miles in a straight line from Grand Marais.
What are the top things to do in Thunder Bay?: Hike the Top of the Giant Trail in Sleeping Giant Provincial Park to cliff-top lookouts high above Lake Superior — a full-day outing. See Kakabeka Falls, a short drive west, where the Kaministiquia River plunges into a deep gorge. Pause at the Terry Fox Memorial and Lookout east of the city, near where his Marathon of Hope ended in 1980.
When is the best time to visit Thunder Bay?: June to September for long days on Sleeping Giant's trails; mid- to late September adds fall color to the drive east.
How much time do you need in Thunder Bay?: Allow 2–3 days to explore Thunder Bay.

Travel well

Make it a good visit.

Check access before leaving.

Opening hours, parking, permits and step-free access change by season. Confirm your needs with the official destination; a map pin is not an entrance.

Give the shoreline time.

Leave room for weather delays and a quieter side trail. Stay on marked paths, respect closures and support the local communities that make the coast special.

Travel thoughtfully

Look beyond the air forecast.

Waves and water temperatures can tell a very different story. Use marine forecasts and local beach advisories before any water activity.

Official weather resources

Nearby

More places to visit near Thunder Bay.

Approximate straight-line distance between representative pins—not driving distance, a ferry route or an access recommendation.

About 66 miles · Minnesota

Grand Marais

An artist's harbor at the meeting of Lake Superior and the Gunflint Trail.

Explore place

Road trips

Put this place on a longer route.

10–14 days

Lake Superior Circle Tour

A cross-border road trip around the world's largest freshwater lake by surface area.

View the itinerary