Veterans park in Hamilton..
Or better yet, Mercer County park off of rt1 (Mercer county park is about 5mins from the hooters we met at...this would probably be the best spot and it has some nice open areas for grilling and stuff.) I've been there a few times for get togethers. They also have a kick ***** spot in front of the lake to take pics....actually there are 2 good spots that I've used there with the lake in the background.
This is one angle...only pic I could find at the moment..but this spot is right near the picnic area.