Take 404 DVP to Don Mills Rd exit NORTH. You will curve to the right and then go up a hill. At the top of the hill is Overlea Blvd and on the southwest corner of the intersection is the school. Coming from the north or central take eglinton Ave East to Don Mills south, and then west onto to Overlead.
You can only access the parking lot if you are heading EAST on Overlea, due to a median that prevents you from turning if you are on Overlea westbound. Therefore you may have to pass the school, turn around safely and come back eastbound on Overlea. The entrance to the parking lot is off of Overlea, just before Don Mills Rd.