Is there clothing rules? Like what you have wear?

No. It's a walk up water park. No one is there to enforce rules or dress code lol

You need appropriate swimming attire. I would suggest adults wear something they're comfortable wearing to chase their children or grandchildren around. I'm a grandmother and wore a modest swimsuit. Most of the women I saw were wearing one pieces or tankini swimwear because you want to have fun with your kids in the water, too. It's hot in TX and that lazy river and splash pad was a lot of fun.

You need a swimsuit or trunks. No jeans allowed.

Me and my wife enjoyed ourselves and the kids had a great time. Then had snow cones.