Doors Open Ontario presenting sponsor
Doors Open Ontario presenting sponsor

Cornwall and SDG Counties

event information

Saturday and Sunday, August 15 and 16, 2026, from 10 a.m. to 4 p.m.

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Cornwall Historical Walking TourDoors Open Cornwall and SDG Counties

  • In-person Doors Open Ontario

Cornwall Historical Walking Tour

This 6-kilometre (3.7-mile) self-guided walking tour is a voyage into Cornwall’s heritage, depicting events and points of interest from the city’s past. The tour follows nearly 30 plaques that have been erected along Cornwall’s waterfront, downtown and in parts of Le Village in the city’s east end — representing industrial links, the former Cornwall Canal and the founding of New Johnstown.

  • Kid-friendly
  • Parking
  • Self-guided tours available
  • Photography allowed

Contact info

Pick up a map and start your tour at the Cornwall Tourism info centre (100 Water Street East), or download one from the description above
Cornwall, Ontario

Architecture

Year built: Various
Building type: Historical landmark
Architect: Various

Dates/hours open

Aug 15 - Aug 16

Historic SDG JailDoors Open Cornwall and SDG Counties

  • In-person Doors Open Ontario

Historic SDG Jail

This jail has a rich history. It served as a maximum-security facility for nearly a century, housing some infamous criminals. It was notorious for its harsh conditions and alleged human rights violations. Today, the jail stands as a museum and popular tourist attraction, offering visitors a glimpse into the prison's past and the harsh realities of life behind bars.

  • Kid-friendly
  • Parking
  • Self-guided tours available
  • Washrooms
  • Photography allowed
  • Rental opportunities

Contact info

11 Water Street West
Cornwall, Ontario
Email: tourism@sdgcounties.ca
https://www.historicsdgjail.com

Architecture

Year built: 1833
Building type: Attraction Historical landmark

Dates/hours open

Aug 15 - Aug 16