If your dog becomes aggressive, remove him from the area. Stay near and remove him if he becomes aggressive or frightened. Do not bring puppies to dog parks unless they are vaccinated. Ask your vet when it would be safe. Introduce your puppy slowly to the play area.
Puppies can become overwhelmed by all the attention and intimated by larger dogs.
Do not bring your pet if ill. Be aware of the opening and closing times of each park. I have met some great people and dogs here. The play area is adequate but gets muddy in the winter. Water is available.