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Calendar update:
We are experiencing intermittent service disruptions impacting our Calendars. If you're unable to access the City Council & Committee Meeting Calendar, visit Oshawa.ca/council and for the Committee of Adjustment Calendar, visit Oshawa.ca/CofAmeetings.
Saturday, May 2 10 a.m. to 4 p.m. Various sites throughout Oshawa
Experience Doors Open Oshawa, an annual event held on the first Saturday in May. This event provides an opportunity to explore Oshawa's diverse heritage and cultural sites. Spend the day discovering local history, unique Oshawa buildings and spaces while celebrating the community's heritage.
Doors Open Ontario is a province-wide celebration that provides a unique opportunity to explore and enjoy sometimes hidden and always interesting places and spaces in cities across Ontario, free of charge from May to October.
The 420 Wing was built as part of the Commonwealth Air Training Plan, it was known as Building 10. Oshawa Airmen joined the Air Force Association of Canada and took over the building. It has been enjoyed by Veterans and their families since then.
Food and drink for purchase, and children's colouring activities available during Doors Open.
The Oshawa and Durham Region Metis Council Community Garden, established in 2016, offers free vegetables, berries, and herbs during the summer months to Metis citizens and members of the community in need.
Bead a red dress during Doors Open, to support Red Dress Day (May 5), raising awareness for Missing and Murdered Indigenous Women and Girls.
Canadian Automotive MuseumAddress: 99 Simcoe St. S.
The Canadian Automotive Museum, founded in 1962, preserves Canada's automotive heritage in a restored 1920's dealership in downtown Oshawa. CAM reflects Oshawa's industrial legacy and houses the world's most significant collection of Canadian cars.
Enjoy museum tours, a gallery scavenger hunt and children's colouring activities during Doors Open.
The Canadian Tank Museum is home to North America's largest collection of operational historic military vehicles, and the official museum of Durham Region's own Canadian Forces unit, the Ontario Regiment (Royal Canadian Armoured Corps).
This year, visitors will enjoy one of the museum's world-renowned Tank Saturday live military vehicle shows for free! The featured show, "Tank Saturday: Evolution," will demonstrate the innovation and development of armoured vehicles since their inception in 1916, showing how tank designs have changed and improved to meet new threats and demands on the battlefield. This live demonstration will begin at 1:00 PM. Throughout the rest of the day, visitors will enjoy free access to the museum's exhibit galleries and a "Kids' Zone" with fun military-themed activities for families with young children. Rides in selected vehicles, including the M548 Battle Bus and M113 armoured personnel carrier, will be available at additional cost, and the museum's gift shop will be open for merchandise sales.
Art and Culture in the Hall, in City Hall, is an exhibit program that celebrates local artistic and creative talent. The current exhibits on display were created by Friends of Second Marsh and visual art students at Maxwell Heights Secondary School.
Explore the City’s greenhouse, one of the few remaining city-run glass greenhouses in Ontario. It is dedicated to housing tropical collections and producing annual bedding plants for city parks, gardens, City Hall, the Oshawa Valley Botanical Garden, and downtown planters/hanging baskets. After sowing over 5,000 seeds and planted 2,000 cuttings, they have 60,000 plants ready for planting by May.
Address: 235 Howden Rd. E.See where Oshawa’s essential city work happens! From salt domes to fleet garages, tour the Howden Depot and learn how city crews keep the streets, parks, and sidewalks safe and beautiful.
Club Carib was founded in January 1966 and houses the Hummingbird Dancers and Oshawa Sounds of Steel. The Centre serves as a banquet hall for community events, such as weddings and conferences.
Enjoy shows at 1 p.m. and 3 p.m., learn how to play a steel pan, and children's colouring activities during Doors Open.
Join this fascinating walking tour of the famous top-secret spy camp. Camp X was a Second World War training facility for agents operating behind enemy lines. It was also North America’s largest communication centre. Join one of two guided tours or stay and engage with guest speakers about the site's history. Uneven terrain. Parking across the street from the monument.
McLaughlin Bay Wildlife Reserve is the former site of the Beaton Dairy Farm. It is now owed by the City of Oshawa. It is an ecological significant, publicly accessible area to the east of Oshawa Second Marsh and on the north shore of Lake Ontario.
The Oshawa Executive Airport is an aviation gateway to the City of Oshawa and the Greater Toronto Area. Located on 484 acres of land, the airport supports corporate business travel and general aviation with a modern terminal building, dual runways and modern navigational aids.
Since 1960, the Oshawa Museum has been collecting, researching, and telling stories of Oshawa's history. Oshawa Museum takes great pride in showcasing the city's history, from the earliest First Nations settlements to the present day.
Enjoy self-led tours of the Victorian-era home of Thomas and Lurenda Henry. Costumed guides will help interpret the spaces. Also, visit the Welcome Gallery and gift shop in Guy House during Doors Open.
Forming part of Oshawa's Civic Centre, this library was a gift of Col. R.S. McLaughlin in 1954. Architect Arthur Eadie was influenced by Frank Lloyd Wright in his design of the McLaughlin Public Library, now the central branch. Explore captivating videos, photographs and memorabilia or attend a guided tour showcasing the library’s evolution over the past 70 years.
The Library welcomes you to attend a performance by Isshin Daiko at 2 p.m., a community music ensemble that plays traditional Japanese instruments. To guarantee your free spot, register today!
Constructed in 1919 and opened in 1921, the Regent Theatre in Oshawa is a historic Georgian-style landmark, designed by J. McNee Jeffrey, a famous Canadian theatre designer, and was officially opened by Oshawa mayor John Stacey.
Enjoy snacks and a comfy seat at this historic theatre during Doors Open.
The RMG opened in 1969 in a modernist stone building designed by Hugh Allward. A 1987 expansion by Arthur Erickson surrounds the original structure, creating a dramatic skylit lobby with soaring 35-foot ceilings and abundant natural light.
Visitors can enjoy a drop-in children's activity room where kids can read, draw, and play. The backyard will also be open for exploration, featuring new public art and interactive elements designed for all ages. For this special day, we will also display a rarely seen artwork from the collection, brought out of the vault for one day only. It could be a painting by Robert McLaughlin, a work connected to the Group of Seven, or even an Andy Warhol. Come visit to find out! Visitors will also be able to explore several exhibitions on view during the event, including "Sukaina Kubba: Not Soft by Nature", the artist's first museum solo exhibition in Canada curated by Leila Timmins, the Oshawa Art Association's 58th Juried Art Exhibition featuring artists from across Durham Region, and Emerging Visions: Durham College Thesis Exhibition 2026.
St. George's Memorial Church has been a distinctive landmark in Oshawa for over 100 years. It continues to have an integral place in the city's history. The interior of the church shows its architectural artistry, beauty and serenity.
Enjoy children's colouring activities during Doors Open.
This site was founded in 1935 with the generosity and self-sacrifice of the parishioners, and with the help of the non-Ukrainian population of Oshawa. They were instrumental in assuring the parish a quick establishment.
Enjoy Ukrainian culture, cuisine, and children's activities during Doors Open.
The Airport Armoury supports 'B' squadron training for members of the Ontario Regiment (RCAC), and it provides space to conduct vehicle and equipment maintenance, as well as related courses.
Meet with members about their roles and experiences within the Canadian Armed Forces at Doors Open.
The City of Oshawa hosts open, free public events. Photographers will be present taking photos and video footage at these events. These images may be used without further notification on City-owned and non-City-owned property, print media, digital media, the Internet, social media sites, media releases and broadcasts. By attending, you consent to such use.