I am from the Bowling Green, OH area, but I have been to Delaware State Park, and have flown my P3P there. AFAIK, Ohio State Parks do not have a no-drone policy (I have flown at other parks, too). As always, avoid crowds, etc. I went to the boat launch area at the south end of the park and flew out over the lake. Few people were around, but I did talk to one guy there who thought my aircraft was totally awesome. I wanted to fly around by the dam, but could not find anyone at the Army Corps of Engineers office to ask, and I did not want to take any chances. There is an AMA airfield nearby, but its a members-only place.