Ah, okay. If it helps to see where things are, taking pictures from a distance -a bit outside the playground / from on the path- should be fine as long as you're just walking by.
The park could do with a little more imagery maybe but it isn't too bad, assuming there aren't many unmapped things there.

The POIs look a bit cluttered at the moment, the bottom left corner doesn't have the POIs in the right place at least. It may be helpful to take fieldpapers or Every Door to get a better idea of their location if it's not as easy to know/remember them well or if you just want to add them later.
Is the Esri imagery resembling how it looked like when you were there, or not?