Visited Bruce's Mill Conservation for their Maple Syrup festival.
Parking is included in the prices. Tickets online are $8.75 for adults, $5.75 for children and seniors. Children under 4 are free. If you buy tickets at the door it's $10 for adults and $6.50 for seniors and children.
There's not much to do. Not really worth going unless you're a kid or just want to experience how people make maple syrup.
Overall, it's pretty pricey. You have to pay for admission and on top of that you have to pay for everything you do almost. In addition to that you have to pay for food, drinks and whatever else you buy. Nice place for hikes but not worth it if you have to pay.
P.S. there is no actual washroom. Be prepared to use porta potties.