I've never been to a water spa before and I wasn't disappointed. The atmosphere is great and the different water pools they provide are awesome. If I could imagine an upper-scale European bath house, this would be it. You do a rotation of a salt bath, green tea bath, and saunas and steam rooms. I ended up getting a body glo treatment as well which was so phenomenal. I felt so wonderful afterwards and my body definitely glowed.
The place is a bit pricey ($150-$200 for the baths and a treatment) but it's very worth it since it's not just an hour thing and then you're done and out of there. You definitely go to relax. And I'm glad that boys aren't allowed but if you're a boy reading this and have a lady friend you want to impress, get her a gift certificate!