Hi, thanks for looking to add to the map. Unfortunately, Google maps is not allowed as a source on OpenStreetMap: https://wiki.openstreetmap.org/wiki/Google. If you'd like to add an image of this park, the best way might be to take one yourself and upload it to Wikimedia Commons: https://wiki.openstreetmap.org/wiki/Key:wikimedia_commons.
Let me know if you have any questions!
Best,
Will