My dog, Rowdy, had a great time at this park once he got over his fear of the water. There was one lady (whom I am told is a regular) who allows her dog to bully other dogs, without correction of any sort. It is unfortunate. We only left when we did because of this lady and her unruly dog. Other than the experience with this woman and her bully, we had a very good time.
Be aware that the water is quite dirty. Giardia (protozoa) is very prevalent in water like this. Make sure you have your dog on anti-parasitic before taking him here and water for runny stools.
I also recommend a very good bath in the bathing area. You should probably even bring your out biodegradable (planet friendly) shampoo to make sure your dog does not bring home a bacterial or fungal infection. Or stink to high heaven and ruin your car seat. A super thirsty towel is good, too.
Owners WILL get wet. And probably dirty/muddy also.
But it's worth the hassle!