Free
Lamoureux Park
A large smoke-free waterfront park downtown, with the Rotary Eco-Gardens, an arboretum, a splash pad, a boat launch and the community museum. Free parking and public restrooms. Free.
St. Lawrence, Ontario
Cornwall
Ontario's easternmost city, on the St. Lawrence River, with a paved waterfront trail, a large downtown park, a year-round conservation woods, and a wetland boardwalk a short drive east.
Photo: A tree-lined walkway in Lamoureux Park on the Cornwall waterfront, Michel Rathwell from Cornwall, Canada, CC BY 2.0
Cornwall sits on the St. Lawrence at the eastern edge of Ontario, a seaway city between the Thousand Islands and Montreal. Lamoureux Park is the large waterfront park downtown, with the Rotary Eco-Gardens, an arboretum and the community museum in a restored Loyalist house. The Riverside Trail is a paved path along the river and the Cornwall Canal.
West, the trail leads toward Guindon Park, a 500-acre waterfront park. East, it leads toward Gray's Creek Conservation Area, with about five kilometres of trails open year-round. Cooper Marsh, a short drive into South Glengarry, has a wetland boardwalk and a viewing platform. Upper Canada Village, a living-history village, is west along the river. Brockville is about an hour and a half upriver; Ottawa is about an hour and a half north. A passport is required if you cross the international bridge into the United States.
Outdoors and nature
Trails, lookouts, waterfalls, beaches and time on the water come first.
Free
Riverside Trail
A paved, off-road multi-use trail along the St. Lawrence River and the Cornwall Canal. From Lamoureux Park it runs west toward Guindon Park and east toward Gray's Creek. Free.
Free
Guindon Park
A 500-acre waterfront park in the city's west end, with trails, picnic areas, a play structure and a boat launch. Free.
Free
Gray's Creek Conservation Area
About five kilometres of forest trails just east of the city, officially open year-round, with free parking. Free.
Season Trails officially open year-round (check before you go).
Free
Cooper Marsh Conservation Area
A wetland east of town, in South Glengarry, with a boardwalk and a viewing platform for birds and other wildlife. Free.
Sights and attractions
Museums, landmarks and the places people come here for.
Free
Cornwall Community Museum
A community museum in a restored 1840 Loyalist house in Lamoureux Park. Admission is free.
Season Admission is free. Hours were listed as Tuesday–Wednesday 9 a.m.–4 p.m., Thursday–Friday 12 p.m.–7 p.m., Saturday 9 a.m.–4 p.m., closed Sunday and Monday (check before you go).
Free
Downtown Cornwall
Pitt Street and the blocks above the waterfront, a short walk from Lamoureux Park. Free to wander.
Free
Rotary Eco-Gardens
A garden of native plants and a small waterfall in Lamoureux Park, with the arboretum nearby. Free.
Free
Marina 200
The city's marina on the waterfront, just east of the Civic Complex, a stop on the riverside path. Free to walk.
Paid
Upper Canada Village
A living-history village west of Cornwall, built from buildings moved during the St. Lawrence Seaway project. Hours are seasonal; the official site posts what is open.
Season Hours are seasonal. The official site was posting Alight at Night for 27 November 2026–2 January 2027; regular village hours were listed as closed on 12 November 2026 (check before you go).
Markets, shops and festivals
Main streets, markets and the dates worth planning around.
Free
Downtown shops
Independent shops and restaurants on Pitt Street, a short walk from the river.
Free
Waterfront cafés
Cafés and restaurants near Lamoureux Park and the marina, at the end of the riverside trail.
Book a tour or activity
Cruises, tours and experiences people book here. Each one goes to the operator's official page, and you can still add it to your trip.
Also bookable, listed above
These are in the lists above, so we don't repeat them here.
- Upper Canada Village Tickets
Part of our The Upper St. Lawrence guides.
Make it a weekend
Why stay the night
- The waterfront park and the trail are a day; the marsh or the living-history village is a second stop that does not fit on the way through.
- The river is better at the end of the day, when the path empties and the water still holds the light.
- Brockville and Ottawa are close enough for a second day, but Cornwall itself is worth the night.
Nearby and worth the drive
Morrisburg and Long Saultabout 25 min · Guide ↗
The Long Sault Parkway, Upper Canada Village and a bird sanctuary, about half an hour west along the river.
Brockvilleabout 1 h 30 · Guide ↗The railway tunnel and a river waterfront, about an hour and a half upriver.
Ottawaabout 1 h 50 · Guide ↗The capital, about an hour and a half north.
Ready-made trips with Cornwall
Good to know
- Tourism: cornwalltourism.com is the official visitor site.
- Trails: City park and trail information is at cornwall.ca. Gray's Creek and Cooper Marsh are Raisin Region Conservation Authority areas.
- Border: The Seaway International Bridge leads to Akwesasne and the United States. A passport is required to enter the U.S.
- We list only places we can check against an official source. Hours, seasons and prices change, so confirm before you go.
Photos on this page
Photo: A tree-lined walkway in Lamoureux Park on the Cornwall waterfront, Michel Rathwell from Cornwall, Canada, CC BY 2.0
Photo: Marina 200 on the St. Lawrence River in Cornwall, Michel Rathwell from Cornwall, Canada, CC BY 2.0
Photo: The waterfront path in Lamoureux Park, Cornwall, Michel Rathwell from Cornwall, Canada, CC BY 2.0
Photo: The boardwalk through Cooper Marsh Conservation Area, east of Cornwall, Ontario, Visem, CC BY-SA 4.0
Photo: Pitt Street in downtown Cornwall, P199, CC BY-SA 3.0