Background
The Rideau Canal is a monumental early 19th-century construction covering 202 km of the Rideau and Cataraqui rivers from Ottawa south to Kingston on Lake Ontario, built for military purposes when Britain and the United States vied for control of the region. UNESCO calls it one of the first canals designed for steam-powered vessels, the best-preserved slackwater canal in North America, and the only canal of its era still operating along its original line with most of its structures intact.
Its 46 locks raise boats 83 m from the Ottawa River to the Rideau Lakes and drop them 50 m to Kingston; it opened in 1832 and is run by Parks Canada from May to October for pleasure boats, the oldest continuously operated canal in North America. Wikivoyage says Colonel By of the Royal Engineers built it from 1827 to give Montreal and Kingston a route away from the American border, founding Bytown, now Ottawa, at its northern end; only about 19 km were dug, the rest using lakes and rivers.
- 1783The route is first surveyed by Lt Gershom French
- 1812The war with the United States exposes the St Lawrence supply line
- 1827Construction begins under Colonel By
- 1832The canal opens for shipping
- 2007Inscribed as World Heritage
Find Your Way Around
The main parts of the site, in the order most visitors see them
- 1Ottawa LocksThe flight of locks down to the Ottawa River, with the Bytown Museum beside them.
- 2Bytown MuseumWikivoyage's pick for the canal's history, at the Ottawa Locks.
- 3Rideau Canal Visitor CentreFour floors of exhibits in a 19th-century stone mill at Smiths Falls.
- 4The Rideau LakesThe summit of the route, where the canal widens into lakes kilometres across.
- 5Kingston and Fort HenryThe southern end on Lake Ontario, with the fort built to guard it.
Know Before You Go
From Wikivoyage and the GoGo guides
The Ottawa End
Not yet in a GoGo guide
- 10:00Ottawa Locks and Bytown Museum2 hrsThe lock flight and the canal's story.
- 13:00Along the Canal in Ottawa90 minThe waterway through the capital.
Best Time to Visit
Best months: Jun–Sep. Freezing days in Dec–Mar.
Typical highs
Climate: NASA POWER