We're as nude as temperature and circumstances permit around here.
We used to be c/o around my kids but when they were old enough they asked us to stop so we respected their wishes & did when they are here.
It's cold as heck here right now & we don't control the temp in our apartment so we usually have something on in order to combat the temperature in the winter months.
I've visited one c/o resort locally. I rather enjoyed it. My kids did too, lol, the ex not so much.
There are as many ways to do polyamory as there are people practicing it!