They have lawn chairs near the water area to lay your towels down but, honestly you can rent a locker out because you will not need a towel until you are done getting wet.
You can carry them, lay them down somewhere near you or place them in a locker. Lockers vary in price. Smallest locker is about $12 and big ebough to hold a backpack and several towels.
We took towels never used them. We left our bags and towels in the lazy river on a chair and would go back and forth as needed
You just sit your stuff to the side. But honestly, the first time I went I took towels, and we never used them once. So now we just leave them in the car til after were done.
Certain rides have chairs to leave your stuff but mainly your gonna have to leave them laying around near by
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