Exhibits The Keepers’ Quarters contains three rooms restored to their 1910 appearance and a gallery exhibit. Exhibits devoted to optics and lenses as well as sound and fog signals are located on the main floor of the house. The second floor features a gallery space that tell the story of Keeper George Marshall and his family. Movies Shipwrecks of the Straits and Old Mackinac Point Lighthouse Tower Tour are presented in the Barn. Straits of Mackinac Shipwreck Museum Located in the reconstructed warehouse, this exhibit features audiovisual displays and a variety of original artifacts to tell the story of the numerous shipwrecks that dot the Straits of Mackinac. Fog Signal Whistle A demonstration of the Fog Signal Whistle, led by a costumed interpreter, will take place in front of the Fog Signal Building at 10:00 a.m., 12:00 p.m., 2:00 p.m., and 4:00 p.m. Tower Tours Tours of the Old Mackinac Point Lighthouse tower take place at scheduled times throughout the day.