I have never taken my dogs into a dog park and never will. I just think they are generally recipes for disaster. I don't know the people there, their training methods (if any), the dogs, etc. Too many variables for me to be comfortable in an environment like that - plus the potential to pick things up from sick dogs or unvaccinated dogs or any other number of things. I did, while waiting for DH to finish a job once, go to a local park where there was a large dog park. We walked around outside of it just to observe and the few folks that were there were so oblivious to their dogs it was unreal. Some of the dogs charged the fence when we walked by. (Which my dog ignored admirably, by the way - proud mama moment there). Admittedly I live in a very rural area where acres of national forest and public lands abound, so there is little need for it personally. I think they are not totally bad places in the right situation with the right dogs but there just are no guarantees. I feel like it's more for city dwellers though, but maybe that's just me.