Join us underground for a day of spooky season fun for all ages. Free Halloween programming will take place at the museum entrance and in the Blast Tunnel. Stop by for activities for youth and families, a spooky photo backdrop, and trick-or-treating (while supplies last). No admission or booking is required to take part in the free programming. We invite you to continue your Halloween visit inside the Diefenbunker with general admission — explore the museum and take part in…
Information may change. If you spot anything outdated or incorrect, let us know.
I run 613today on my own and I'm not affiliated with this event or its organizer. Event info may not be perfectly up to date. Please double-check with the official website before heading out, or contact the organizer directly for any questions about the event. 613today doesn't sell tickets or process payments — always buy through the organizer's official channels and verify before paying. I'm not responsible for transactions with event organizers. If you spot anything wrong on this page, let me know.
Event Details
Diefenbunker: Canada's Cold War Museum
A four-storey underground bunker built in 1959 as Canada's emergency government headquarters during the Cold War. Now a National Historic Site, it offers self-guided tours, guided tours, and an escape room experience 75 feet below ground.
Upcoming Events
seasonalOct 24Games Night in the Bunker | Halloween edition
Diefenbunker: Canada's Cold War Museum
It’s time for a rematch. Take your games night to the next level, 75 feet underground inside a once top-secret Cold War bunker. Built to support government operations during a national emergency, t...
Toddlers’ Halloween Hunt 2026
Diefenbunker: Canada's Cold War Museum
Our annual Toddlers’ Halloween Hunt is back! Bring your little ones for a day of fun to get into the Halloween spirit. Come dressed in your favourite costume and explore hidden Halloween surprises ...
seasonalOct 10Amazing Autumn Weekends
Canada Agriculture and Food Museum
The leaves are vibrant, the air is crisp…and it’s time for Amazing Autumn Weekends! From our beloved spooky barn to baling demonstrations and a pumpkin corner, there’s no shortage of seasonal, fami...
seasonalOct 16Halloween fun at the museum
Canada Science and Technology Museum
Celebrate Halloween in Ottawa with family-friendly fun! Ride the Pumpkin Express to a pumpkin patch, pick your perfect pumpkin and explore special Halloween activities at the museum. Our halloween ...
seasonalOct 30Science for tots “Halloween at the farm”
Canada Agriculture and Food Museum
Celebrate the magic of Halloween on the farm with this fun-filled, hands-on program designed especially for babies, toddlers, preschoolers, and their adult / caregivers! Explore science together th...
seasonalDec 9Science for tots “in flight”
Canada Aviation and Space Museum
Science for tots “in flight” introduces babies and toddlers (4 to 35 months) to science through hands-on activities and play. Explore science together through play and wonder! For ages 4 months to ...
Want to add your event to 613today? It’s free!
Contact Us →