« All Events Music in Mackinaw – Cool2Duel (Dueling Pianos/Comedy) This event has passed. Event Navigation « Mackinac Bridge Swim Straits Area Concert Band » Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Details Date: July 20 Time: 8:00 pm - 9:00 pm Event Category: Mackinaw City Event Venue Conkling Heritage Park