The Oyster Bay chickee is possibly the only chickee in the park which is situated in water deep enough to dive like this. (The others I've used are in shallow, mucky spots.) It is a double chickee
Oyster Bay is sort of between Whitewater Bay and the Gulf of Mexico.
I have seen fishing boats land there just to use the port-a-john. If you hear one approaching, you might want to grab a towel or pair of shorts. (I have an American Indian style "breech cloth" for this purpose. Technically, it's a set of aprons (front and back) rather than a true breechcloth. I can slip them on and off in seconds. A true breechcloth would take much longer than that.)
