Is there an area in the dog park for them to swim or play in water?

I think gabby is referring to Orion Oaks dog park, actually. This one doesn't have a dog beach, unfortunately. Just mud when it rains too much, like it has lately! Be prepared with a towel. 😉

When it rains there is often a big puddle/lake that forms in the front of the left dog run. I haven't seen a place to swim here though and we go weekly.

Yes. Go to the far left dog park, and walk to the very end, you have to go through another dog gate and there is a dock where they can swim. It is a lot of fun for the dogs,.