The nearest park to me is Balduck, in Detroit, but it's fairly small, has no pavilion, and tends to be quite busy on the weekend. I'm not that far from Belle Isle, either, but, again, that's busy on the weekends and the pavilions are reserved way in advance.
Stony Creek is out there, at 26 and Van Dyke. The only closer Metro Park to you would be Metro Beach, but see all of above problems: quite busy on the weekend, and pavilions reserved far in advance. You'd also can't park close - there's one lot, and you have to walk to wherever you are going.