We at the Diefenbunker are undertaking a review of our visitor policies.   To ensure that each visitor gets the most from his or her visit, we have increased the number of daily guided tours with our wonderful team of guides, offering tours on the hour between 11:00am and 3:00pm.  Additionally, we continue to offer group tours by reservation. Space is limited on our guided tours. Reservations are strongly recommended. Please call 613.839.0007 to reserve your spot.

Self-guiding of the Museum will not be offered to visitors at this time.

We look forward to seeing you at the Bunker soon and wish you a safe and happy summer.

Ottawa’s Most Unique Historical Site

The Diefenbunker is a four-story, 300 room, 100,000 square foot underground bunker, and was meant to house 535 Canadian government officials and military officers in the event of a nuclear war. Shrouded in mystery, the Diefenbunker, nicknamed after then Prime Minister John Diefenbaker, was designed and built in secrecy during the crest of Cold War fear, between 1959 and 1961. The name of the facility was given by a Toronto Star journalist who exposed a story of its development. Want to know more? Visit us for a tour!

Watch our teaser trailer for a quick peek into our underground bunker! Thanks Ottawa Tourism for the great video!

What’s new at the Diefenbunker?


Due to ongoing construction along Carp Road, visitors are encouraged to factor a delay in their travel time or to take an alternate route to the Bunker.



June 30-August 29, 2014 children go undercover for a week at a time in the Bunker and return home having mastered the skills of a real secret agent. A different theme each week! For youth ages 7-9 and 10-12. Spots are filling up, register by filling out and submitting our form here – Spy Camp Registration Summer 2014.



What are we “APP” to these days? Well, we’ve been selected to be part of an innovative discovery and educational APP which provides user experience, serving to increase exposure, promotion, and ultimately recognition of Sites as having natural, cultural and historical significance on a national platform – it’s called Explore150.  Visit their website to download the app!




We are thrilled to announce that we received Ottawa Tourism’s Partnership of the Year at the 2014 Awards Gala; an award shared with the Haunted Walk Ottawa, the Bytown Museum and Ottawa Jail Hostel.  During the Halloween season, the Haunted Walk offered three unique tour options with its partners, including our Incident at the Bunker: A Zombie Adventure.  These hair raising tours attract new and younger audiences to our facilities and present heritage interpretation in an altogether new light.

Our thanks to the Haunted Walk for submitting the nomination and for working with us to offer these ghoulish tours.



SHOUT OUT TO The great City of Ottawa and our amazing City Ward Councillor, Eli El-Chanitiry!
We at the Diefenbunker want to send out a big thank you to the City of Ottawa for supplying us with the Rural Community Building Grant.  This grant allowed us to hire three firms to write 3 reports which will greatly enhance our abilities to conserve, preserve, and move forward as a National Historic Site.  Thank you too to our amazing City Ward Councillor Eli El Chantiry for his ongoing support.  We are truly grateful!



Diefenbunker tour recognized as a new Ontario Signature Experience
The Ontario Tourism Marketing Partnership Corporation (OTMPC) has launched Ontario Signature Experiences (OSE) to promote and market must-see travel experiences that will appeal to global target markets.  The OSE program is designed to showcase the best and most unique tourism experiences in the province that will motivate more people to visit Ontario.

For further details visit http://www.tourismpartners.com/partnerOps.xhtml?language=en



We’ve launched a new app! It’s available through iTunes and Android downloads. It’s free to download and gives a full virtual tour of the closed machine room, audio tours and upcoming events.
» Be the first of your friends to have it! 


Ontario Trillium Foundation

We’re the proud recipients of an Ontario Trillium Foundation grant!  We will receive $34,700 over one year to support the development and delivery of conflict-resolution workshops in order to build problem-solving and conflict- resolution skills in children and youth.