So what's this mean? It means that you can sunbathe in the nude and swim in the nude at the pool. Or wear your swim suit. Whatever you'd like. You'll want to bring a coverup (sarong/shorts/ stunning silk robe) for transiting from the pool to your cabin or the restroom in the Guest Lounge.
For guests used to staying at some of the same-sex resorts in Palm Springs or other gay destinations we're more of a PG13 kinda place... with nakedness.
The resort grounds are open to all of our guests. This includes men, women, and occasionally children. Many parts of the resort (including the pool) are visible from neighboring homes (and not just the ones along our property line). So to answer your question: no sexual activity outdoors. Ever. Not even on your birthday.
Day guests are invited to either rent a room (we do that here) or take loverboy/girl home with you.