If you're looking for a little-known and rarely visited destination on Cape Breton Island try out St. Columba Falls. St. Columba falls are among a deep hole in the rock of St. Columba Mountain in the Little Narrows area. The falls flow from a small overhead stream into a curtain and slide type of waterfall. There is a fairly deep pool below falls perfect for swimming. On the way to the falls, you'll see some of the best views of the lower Cape Breton Highlands and the mountains of Whycocomagh.
St. Columba Falls are located on the St. Columba Road. To get there, take the Little Narrows Road from the Little Narrows ferry wharf toward Hazendale. After 10.6kms, you'll reach a four-way intersection. Keep straight through onto the dirt road and follow the sign to St. Columba mountain Road. 300 meters from the fork, look for a small trail (not marked) on the right hand side of the road. Park and follow the trail for 75 meters to the falls. I'd recommend taking the drive from Blues Mills along highway 223 rather than the ferry for a more scenic route.