Clueless waterpark person I was when we went a couple of years ago - so we arrived, maybe an hour after TL opened!! It was packed ( late July I believe!)
Not even knowing the layout... we went left, and walked with our wheeled cooler, and bags, but no towels!! (*duh, please bring towels from your resort, or you stand in line and pay for towel rental!) We walked all around up the stairs, down the stairs, around the typhoon wave pool, down the stairs (yes, with an 8yr old, and that dang picnic cooler on wheels... the collapsible one from Sam's Club)
Went towards the shark pool, (just looking for a spot to sit!!) and there, in a cove area to the left (from whence we came!! lol ) was a picnic shelter - lots of tables available, lots of lounge chairs!! Came in real handy when it began to rain - we ended up sharing our picnic table!!

and the rain stopped after a few minutes!!
So, most of the time I had no idea where dh and dd were!! I put towels and shoes and clothes on chairs, and I put our cooler on the table - along with our bottles of water... no one bothered it all day!! But, I did have to relax about not seeing dd from where we sat, and know that dh was with her!!
Then dd and I did lazy river, and dh was on his own... it was a fun day!!
I think if you enter the park and head right, pass the towel people and lockers, head towards the Shark reef, forward and to the right of the food place - you should be able to locate it - its not a prime spot, but we made it work!!