Halloween · Denver Metro
BOOnion Station
Thu, Oct 29, 2026 · 4–7 p.m.; costume contest 5–6 p.m.
Denver Union Station, 1701 Wynkoop St. · Denver
Free
Denver Union Station lists the 12th annual BOOnion Station for Thursday, Oct. 29, 4–7 p.m., and says it is free and family-friendly. The costume contest is 5–6 p.m.
Denver Union Station's event page lists BOOnion Station for Thursday, October 29, 2026, from 4 to 7 p.m., and says the afternoon is free and family-friendly. The costume contest is 5–6 p.m. The page names a Rocky Mountain Mini Train on the North Plaza, trick-or-treating at businesses in the station, DJ Chris, and face painting. Costume prizes on that page are Most Creative, Funniest, and Best Family/Group. The station address is 1701 Wynkoop. The page says the afternoon is in partnership with Renewal by Anderson. That is the station's partner line, not a paid post here.
The Denver Gazette's Oct. 27 roundup lists the same Thursday, 4–7 p.m., with trick-or-treating, a costume contest, face painting, and DJ Chris. The Gazette does not print the word free. The free line on this page is from the station's own event page.