When you walk up to the edge of the gorge at Peter Skene Ogden Park, you can see just how hazardous it is. It's several hundred feet, straight down a sheer vertical cliff face, with just a low stone wall between you and eternity.
Actually, it makes you want to take the whole family back to the vehicle.
Getting back to the sign, though - that dog looks so fearless and strong, as he vaults over the wall to his doom. And what's up with those birds, anyway?