Want to try an adventure? There are several options to circumnavigate Algonquin Park via fire roads, ATV trails, and the TCAT. I'm planning a 3-5 day route leaving from the Ottawa Area in early August, camping along the way. It'll be suited to smaller DS bikes like my WR250R. Based on online info from others who've done it, many sections of the route can get pretty rough for large DS bikes. Dirt-oriented tires recommended. If interested, drop me a line.
Update Aug 7, 2016
I completed the ride solo last week, over three days of 12 hours riding each day. 1300 kms of mostly dirt with 17,000 m of climbing. One silly accident while just sitting on my bike. Didn't die. Ride report coming soon!