Grimsboo!

GrimsBOO returns to Downtown Grimsby on Saturday, October 24, 2026, from 10:00 AM to 2:00 PM for a fun-filled, family-friendly Halloween celebration in the heart of the community. This much-loved event transforms downtown into a festive fall playground, featuring free activities throughout the core including kids’ trick-or-treating at participating businesses, costume photo opportunities, face painting, pumpkin carving, bouncy castles, large games, and interactive Halloween photo ops. Families can also enjoy special experiences like cookie decorating, character meet-and-greets, and themed activities hosted by local businesses and partners. With sidewalks buzzing, costumes everywhere, and downtown merchants fully activated, GrimsBOO is a highlight of the fall season and a safe, welcoming way to celebrate Halloween in Downtown Grimsby.