The biggest lakers I've ever caught all came through the ice on Simcoe, jigging spoons on a hand line that contained less than 200' of mono, heavy line mind you, no mercy once hooked. Oh the good ole days.
We edit them, someone craps on us!
We lock them, someone craps on us!
We delete them, someone craps on us!
We leave them and guess what, someone craps on us!
I was going to post that as well. Puslinch is best avoided for fishing IMHO especially with young'ns. Little lake right beside it would be a safer bet or as JA mentioned, Shade's Mills or perhaps Valens.