KOA's have a rep of being a party place, so if that's not what you want you should look else where. We stayed at the one in Parry Sound not knowing anything about it and it was not the best camping trip we've had. The camp ground itself was really nice but we had major problems with other people partying until all hours of the night. We complained and the owner basically told us that we were making it all up.
We later found out that people will go to KOA's because it is acceptable to get drunk and party all night.