There are no expectations...shave, don't shave...whatever. for the pool and hot tub...suit...no suit..half suit...whatever..you do what is comfortable for you.
It is BYOB...wine and beer only. And no glass outside in the pool area. You could bring glass bottles and pour them in a cup to go outside.
The House is fun...it really is a back yard pool party...just with some naked people ??

