When are most campgrounds near Orillia open?

Most campgrounds near Orillia are open from May through October. Bookings outside that range may be hard to come by. Many private campgrounds rent campsites by the season to RV owners. It might be hard to book short-term summer camping for this reason. But tent campers should be able to find midweek availability most of the time, while weekends will need to be booked in advance. You can also explore different options for camping near Orillia on Hipcamp.