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The Diefenbunker: Canada’s Cold War Museum will be opening its blast doors for free tours in French and English by reservation only for Doors Open weekend – June 1 and June 2. These tours will be 30 minute “Highlight Tours” and will not feature the entire building.

Please be advised that if you do not have a reserved ticket, we cannot guarantee entrance into the Diefenbunker. There will be no self-guided tours.

Date: Saturday June 1, Sunday, June 2
Time: 10am – 3pm
Price: FREE!

On June 1 and 2, 2019, the City of Ottawa is proud to present Doors Open Ottawa – a free annual architectural event that celebrates our community’s built heritage. It is the second-largest Doors Open event in Canada, and one of the largest in the world!