A lot of parks have playgrounds within them, for example [Monocacy Village Park](https://www.openstreetmap.org/#map=19/39.42876/-77.39904). How do you mark these playgrounds for children to distinguish them from the larger park?

A lot of parks have playgrounds within them, for example [Monocacy Village Park](https://www.openstreetmap.org/#map=19/39.42876/-77.39904). How do you mark these playgrounds for children to distinguish them from the larger park?