this is an old post, but i bet many could benefit from it. there's a tiny outdoor playground in stanley right next to the bus terminal. there;s one in the botanical gardens in central too. there's the playground in the manhattan building too which is in tai tam across from the american club which many non-residents go to.....there's never been a problem, but it depends how comfortable you feel in doing that if you don't live there.
doesn't parkview have an outdoor playground?
other than that, there are the indoor playrooms - the one in stanley is very clean, bright and often not too crowded if you go on the off hours. there's playtown and the little playroom in babycakes . . .