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Boats travelling on the iconic Rideau Canal

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What We're Famous For

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The St. Lawrence River is known as "Le Fleuve," the Greatest Canadian River, and we are fortunate to have it flowing past our community here in Leeds Grenville.

Also known as the St. Lawrence Seaway, the river is both a trade corridor as well as a recreational waterway attracting millions of visitors to its waters and its scenic 1000 Islands every year. There are dozens of shipwrecks under the river’s waves perfect for world-class, fresh-water scuba diving. The river stretches about 600 kilometres (370 miles) from Montreal to Lake Ontario, part of the interior Great Lakes. The Seaway enables shipping trade from the Atlantic Ocean to travel deep into the heart of North America to Lake Superior.

The St. Lawrence Seaway Management Corporation oversees the movement of marine traffic. Deep-draft ocean vessels, lakers, tour boats and recreational watercraft have been sharing this unique passageway since 1959. There are many viewing points along the river close to the shipping channel, including Cardinal, Johnstown, Prescott, Maitland, Blockhouse Island and the Brockville Narrows. Crossover Island, where freighters cross from the Canadian to American channel, is located in New York State close to the Canadian border.

View interactive map to see where the boats are.

The St. Lawrence Seaway is considered one of the world’s greatest and most strategic commercial waterways with a top-notch safety and reliability record. The seaway was built through a binational partnership between Canada and the United States.

There are several harbours along the river on the Canadian side within Leeds Grenville.  Marinas providing various services in the communities of Johnstown, Prescott, Brockville, Mallorytown, Rockport, Ivy Lea, Lansdowne and Gananoque.

Aerial image of the 1000 Islands International bridge and the fall colours

1000 Islands

Boats approaching locks on the Rideau Canal

Rideau Canal

Cruise ship on the St. Lawrence River, going under 1000 Islands international bridge

St. Lawrence River
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  • Athens
  • Augusta
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  • Edwardsburgh Cardinal
  • Elizabethtown-Kitley
  • Front of Yonge
  • Gananoque
  • Leeds and the Thousand Islands
  • Merrickville-Wolford
  • North Grenville
  • Prescott
  • Rideau Lakes
  • Westport

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© 2022 United Counties of Leeds and Grenville
Economic Development Office
32 Wall Street, Suite 300
Brockville, Ontario, Canada K6V 4R9

613-342-3840 ext. 5362
North America toll free: 1-800-770-2170
International: 00+1+613+342+3840
Email: econdev@uclg.on.ca
www.discoverleedsgrenville.com

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  • About This Place
    • What We're Famous For
    • Plan Your Trip
    • Weather
    • Relocation & Immigration
    • Video Gallery
    • Our Municipalities
    • Business Directory
    • Tourism Directory
  • Eat & Drink
    • Bakeries
    • Bars & Pubs
    • Beer & Liquor
    • Bistros & Delis
    • Breakfast
    • Breweries & Distilleries
    • Catering
    • Cheese
    • CSA Food Box
    • View All...
  • Plan Your Trip
    • Tourism Directory
    • COVID-19
    • Events, Meetings, Conferences
    • Getting Around
    • Getting Here
    • Groups
    • Recreational Rentals
    • Request Information
    • Services
    • View All...
  • See & Do
    • 1000 Islands Tower
    • Aquatarium
    • ATV
    • Birding
    • Boating & Marinas
    • Conservation Areas
    • Cruises
    • Cycling
    • Entertainment
    • View All...
  • Stay
    • Hotels, Motels & Inns
    • Bed & Breakfasts
    • Camping
    • Cottages & Cabins
    • Houseboats
    • Islands
    • Marinas
    • Resorts
    • Relocation & Immigration
    • View All...