Is it a dog park? We don't reserve it for a private romp (they won't let us do that!) but I do give them a head's up. The park we have it at now doesn't like me advertising for the romp, but we haven't had any trouble yet- except for one of the forest preserve guys e-mailing me and telling me I can't host an event at a public park! I would say just go for it. The other people at our park don't seem to mind, and we don't care if they are there! Good luck!
Bridget, Summer, and Duke
Bridget, Summer, and Duke