You can't be nude with your partner together. The communal area are clothed
No swimsuits are allowed, just birthday suits lol if you go as a couple make a time you want to meet up in the communal area. Also check out the restaurant together
Only nude in the women area. You may be able to wear a swimsuit if you call and ask them first. They do great scrubs and massages!
Spa has women or men only area (called spa) - this area is naked area. If you are shy, you can wrap a towel around your body, but you'll have to unwrap when you go into tub. They also have a common area for both men and women. For this area, they'll provide a uniform(either Kimono or T-shirt).
I went one time and is different everybody naked I don't know about wo.ans or they give kimono or short and tshirts for some areas
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