You are so lucky to have those dog parks near you.
My only experience at a dog park was while we were away in Liverpool on a cold damp morning. There wasn't anybody else around so we had it all to ourselves. I thought great for once I can let her off her lead. Well she just sat there she wouldn't move from my side. If I'd realized the doggy park was there I would of taken a ball or something for her to play fetch. so it wasn't such a fun experience for Chloe but I think they can be a great place to socialize with other dog lovers and pets.
Dogs are not our whole life, but they make our lives whole.