As Scubaman said, there really isn't a clothing optional side any more, as there are very few places even renting chairs right now. Most of the people are congregating on the Club O section, just because that's almost the only place where you can get chairs, food and drinks and have a rudimentary toilet. You always could bring your own chairs and umbrella to Club O. It used to be that you would need to place them behind Club O chairs, but now there really are not that many chairs that they put out, so you should be able to find a spot on the water along a wide stretch of beach. Enjoy!