As a Trainer and Behaviourist, I am constantly asked about how owners can control their dogs in offleash dog parks.
These areas are HARD WORK! You can't just expect your dog to come back to you in an offleash dog park. When there are many dogs and smells, you have to be MORE interesting than any of these stimulants and that's pretty much impossible.
Offleash dog parks are a place that combines the chance to have your dog mingle with other dogs and also you get the change to mingle and socialise and make new friends. The problems that occur though sometimes outway the benefits.