Fleur-de-lis Trail
The Fleur-de-lis Trail runs along Cape Breton's southern Atlantic coast — from the Canso Causeway east through Isle Madame, around St. Peter's Canal, and on to the Fortress of Louisbourg.
It's the quietest of the named trails and the most distinctly Acadian, with a string of small fishing villages — Petit-de-Grat, D'Escousse, Arichat, L'Ardoise, River Bourgeois — that have been French-speaking for nearly 300 years. The cathedral at Arichat, the operating canal at St. Peter's, and the immense reconstructed fortress at Louisbourg are the three set-pieces.
Allow most of a day if you stop properly; longer if you take the Isle Madame loop.