The rapids at the mouth of the Saint Mary's River have been the key factor in Sault Ste. Marie's history. The city was named after them, too ("sault" is the 17th-century French word for "rapids"). For Digital Doors Open, choose from one of four online tours — or do them all — Sault Rapids, Stroll down Queen Street, Downtown Murals or Waterfront Attractions. You can find them all here. Or you can download the app (from the App Store or Google Play) and take actual walking tours in your own time, at your own speed. However you do them, have fun exploring Sault Ste. Marie! This OnThisSpot project is a partnership with the Sault Ste. Marie Downtown Association, the Sault Ste. Marie Museum, and Tourism Sault Ste. Marie.