Doors Open Oshawa is an annual event providing an opportunity to explore Oshawa’s diverse heritage and cultural sites. Spend a day discovering local history first-hand and celebrating our community heritage. ------ Doors Open Oshawa Sites 2026: ------ - 420 Wing Oshawa Inc. Address: 1000 Stevenson Rd. N. Alexandra’s Bounty Garden Address: 360 Simcoe St. N. Camp X/Intrepid Park Address: 2008 Boundary Rd. Canadian Automotive Museum Address: 99 Simcoe St. S. Canadian Tank Museum Address: 1000 Stevenson Rd. N. City of Oshawa, Howden Operations Depot Address: 235 Howden Rd. E. City of Oshawa, Parks Horticulture Greenhouse Address: 919 Farewell St. Club Carib of Oshawa Address: 600 Wentworth St. E. City of Oshawa: Art and Culture in the Hall (New for 2026) Address: 50 Centre St. S. Hamilton-Oshawa Port Authority Address: 1681 Simcoe St. S. McLaughlin Bandshell and Cenotaph Address: 110 Simcoe St. S. Oshawa Museum, Henry House and Guy House Address: 1446 Simcoe St. S. Oshawa Public Library, McLaughlin Branch Address: 65 Debwewin Miikan (formerly Bagot St.) Oshawa Second Marsh and McLaughlin Bay Wildlife Reserve Address: 1908 Colonel Sam Dr. Market at 70 King (New for 2026) Address: 70 King St. E. Regent Theatre Address: 50 King St. E. The Robert McLaughlin Gallery Address: 72 Queen St. St. George's Memorial Church (New for 2026) Address: 51 Centre St. S. St. John the Baptist Ukrainian Orthodox Church (New for 2026) Address: 31 Bloor St. E.