I can add that you won't run into any troubles up by the hot tub. Natasha gave me some really good head in the hot tub one day, and we also put on quite a show one evening in one of the hot tub area beds. You won't get interrupted by the staff if that's your concern. You may find a small audience has gathered when you're done though. lol! We never did any fooling around by the beach because there were often people walking by during the day from the resort next door (sometimes with children in tow!), and we didn't go there at night.
We also went into the disco playroom several times and always had a good time in there by ourselves. There was not a lot of swapping or group activities going on that we saw, just a lot of couples enjoying hot, sweaty sex a few inches from other couples doing the same thing.
There was usually plenty going on towards midnight or later, not much before that.
And to put all of the above into context, we went during a regular (non-takeover) week. Can't wait to go back.
Boris