« All Events Colonial Michilimackinac Opening Day This event has passed. Event Navigation « Mackinaw City Winterfest (Outhouse Races & Obstacle Course) Fort Mackinac Opening Day » Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Details Date: May 10, 2023 Time: 9:00 am - 5:00 pm Event Category: Mackinaw City Event Website: https://www.mackinacparks.com/