Doors Open Ontario
The Ontario Heritage Trust works with communities across the province to open the doors, gates and courtyards of their unique and most fascinating cultural sites so you can explore the stories inside. Discover the story behind every door.
Find out more
Visit the Doors Open Ontario website — in this, our 25th season — and discover all the sites that are participating in events throughout the season. See how you can volunteer and support this provincewide program. Connect with the past and appreciate the architectural and cultural wonders that make Ontario unique.
Find out more
: Start planning your excursion todayWhat is Doors Open Ontario?
Doors Open Ontario is a provincewide heritage tourism program that gives the public free access to explore fascinating heritage properties all across Ontario. It showcases the buildings, natural spaces, infrastructure and cultural landscapes that shape and define our communities. Hosting Doors Open Ontario in your community celebrates its identity, generates volunteerism, builds interest in Ontario’s heritage and drives cultural tourism and economic development opportunities. Participating sites must offer free admission to the public and can include museums, places of worship, public, cultural or institutional buildings, private businesses, trails and natural areas — and more.
See what communities are participating in 2026
April
May
- Oshawa (May 2)
- Hamilton (May 2-3)
- Along the Grand (May 9)
- Richmond Hill (May 9)
- Toronto (May 23-24)
June
- Whitchurch-Stouffville (June 6)
- Ottawa (June 6-7)
- St. Catharines (June 13)
- Loyalist Township (June 20)
July
- Owen Sound (July 18)
August
- Haldimand (August 1)
- Burlington (August 8)
- Cornwall and SDG Counties (August 15-16)
September
- Belleville (September 12)
- Peterborough (September 12)
- Kawartha Lakes (September 13)
- Brockville (September 18-19)
- Simcoe County (September 19)
- Waterloo Region (September 19)
- London (September 19-20)
- Aurora (September 20)
- Barrie (September 26)
- Markham (September 26)
- Sault Ste. Marie (September 26)
October
- Niagara-on-the-Lake (October 17)
- Whitby (October 17)
- Woodstock (October 17)
TBC
- Brampton
- Chatham-Kent
- Quinte West

