I spent the weekend on Hants County’s Herbert River. My access point was the landing near the mouth of Gulf Brook, SE of Centre Rawdon. In days gone by it was apparently known as Happy Home(s), and was the site of a lumber camp and possibly a sawmill. Downstream of this spot the river is very river-like, as it keeps flowing through a steep valley. Right now it is likely unnavigable due to the low water. But upstream it is a series of ponds and marshy stillwaters, which means that upstream travel is possible, if you are willing to portage around the boney “runs.”
There are several good campsites in the area, including one which sports a neat canoe-in spring which supposedly never dries. That’s where I got my drinking water. Camping was superb, as it was quite warm and clear, with neither blackflies nor mosquitoes around. No need to zip up the tent’s entrance. But if only the spring peepers and the wood frogs were a little more quiet in the evening!