Similar in beauty and difficulty as it's companion North Granite Ridge trail, takes about 5.5 hours if you're looping from the south parking lot on the Musquodboit tailway. The distance markers on the actual trail seemed to be a bit off in that the final stretch to the end of the trail seems a lot longer than the .5km noted.
Excellent trail, did it in conjunction with the short but equally beautiful Gibraltar Rock Trail. It's a tough trail due to it's length and also the 7km hike back to the car on the Musquodoboit Trailway is a bit of a slog. The entire loop took me about 5 1/2 hours with a stop for a quick lunch halfway thru.