Hi there, we were at Bonnet Creek about 4 weeks ago. It is wonderful, you will enjoy it there. There are towels provided right at the pool. There are tents there, 2 at the main pool,not sure about the slide pool, but I am assuming the same. You are not to take the towels out the room to use for the pool, and I wouldn't, only because you don't get extra.
The only other thing is the towels for the pool are to be left at the pool, not taken out of the pool area. I always brought my girls bathing suit coverups with me if we were swimming after the sun went down, because it was cool walking back to the room. Have fun, and I hope you love Bonnet Creek as much as we did. Wish we were going back!