Kensington is not bad. There was a pretty big encampment last fall, but the playground is pretty untouched. Both the Grange and St. James can have these issues too, but are so popular that you normally don't. It's when someone is sleeping in the play structure, or you have to clear out the used needles when you get there that's an issue, and you'll see both at Barbara Hall (we don't take the kid there, but my mother-in-law works in the building next to it).I didn't know the Barbara Hall park had a playground but wouldn't go for the same reasons. We stopped going to the Kensington park too. We had a couple visits were the park was already in use by those 20+ in age and I didn't feel the kids would be safe.