Highland Backpacking Trail is a 18.7 mile moderately trafficked loop trail located near Nipissing, ON that features a lake. The trail is rated as moderate offers a number of activity options.
My personal favorite of the three backpacking trails in Algonquin. It is two loop options 19 and 25km. Terrain is relatively challenging and a good variety of terrain and backcountry campsites on scenic lakes. I saw several moose on the trail when I completed this trail over two days, and even heard some wolves howling in the foggy morning!