It closely follows the coast of the Atlantic Ocean and the Strait of Canso from the Canso Causeway to the junction of Route 322 and Highway 111 in  Dartmouth.
The description refers to a specific stretch of coastline that runs along the Atlantic Ocean and the Strait of Canso, from a point near the Canso Causeway to a junction on Route 322 and Highway 111 in Dartmouth.