It's seems to be a pretty rare thing to find a park with no caches in it, so when I noticed this park was cache-empty I figured there had to be a catch -- too close to another cache, on the city's "do not hide caches here", something. Lo and behold, the location is legit!
I had a difficult time coming up with the D/T; some people will undoubtedly think I ranked this too high, but I prefer to err in that direction than to mark it too low and create unrealistic expectations for some cachers. Regardless, hope you have fun finding this one.