What are the benefits of taking ones dog to a dog park?
At a dog park dogs can play safely without a leash, do exercises and play with other dogs. Many dog parks offer dogs a pond for swimming. There are also facilities for the dog owners, like benches, toilets and possibly wheel-chair access.
If you're asking this question, you need to pay more attention to your dog. Pay attention to your dog as much as possible, because your dog is part of your family. Try playing with your dog, petting your dog while reading or watching tv, and taking your dog to the dog park or on your morning run to get him/her out of the house.