I don't have any local knowledge here either. I came across this on aerial imagery, and given the "windy" roads, 2 side access from public roads, something that looks like part of a "Finse piste", some new tree plantings, a water feature, ... I figured there would be a good chance this is a (new) park.
This todo was made equally as an indicator for myself as well as other community members.
I agree that the conclusion "this is a park" might need further online or local sources, but the features described above can definitely be mapped. Please keep this note open for a bit. It is actionable, even if I haven't gotten around to mapping it yet myself.