The St Peters Canal and its tidal lock chambers connect Bras d Or lake to the Atlantic.   Floating through this half mile long, hand dug channel sure beat the old choice, dragging whatever boat they were in, over a high granite hill on a log road.  Since the 1850s it all works pretty much like the locks on major rivers but since this channel is so small and the gates operate from canal-side consoles, we could get right up close to watch boats going through.