The newest trail through the Rouge Urban Park goes from 19th Road Day Use Area, 5.1 km to the south, ending at Elgin Mills Road. There are parking spaces, an information board, and toilet facilities at the start of the trail. Eventually there will be a system of connected walking/biking trails all the way south to Lake Ontario.
And no... I didn't come face to face with the bear, thank goodness. He (or she?) was sighted back in May or June so I think he's long gone from the area.