Centennial Trail
The Centennial trail does not go around Lake CDA, although it does follow the north shore for a bit. Going around the lake is all narrow two lane roads.
The CT is 37 miles in length, from Coeur d'Alene to past Spokane at Nine Mile Falls. It's quite lovely in place, also non separated from the road in places too. One short section along Upriver Drive, in Spokane, just W of Argonne Road is closed due to construction right now.