"We excitedly jumped on our Hondas and rode right through town until we hit the trails. It should be mentioned that the town of Mattawa is exceedingly ATV friendly, allowing ATVers to ride on public roads so long as they use proper hand signals and follow the rules of the road. Even local restaurants and accommodations welcome ATV riders with open arms. As Mattawa Voyageur Country Tourism Development Co-ordinator Mike Stiell tells us, it’s not uncommon to see a half dozen ATVs parked in front of a local restaurant."
For a full range of places to ATV in Ontario see: http://www.ontariotrails.on.ca/trail-activities/atving/