it is complimentary for all hotel guest. it is onsen, with both indoor and outdoor. Great to have a soak daily!

I confirm windows do not open, but A/C is working great.

Hi, I visited the female spa and it was very pleasant, although I did find it awkward being completely naked in front of other people. There was a mother with her son (I would guess that he would have been about 6 years old), and that was not a problem for me. I am not sure how other guests would feel about your 10 year old son being there. I personally would not have a problem, as I understand how difficult it is for women travelling with children. The female spa area is not large: there are two pools (one indoor and one 'outdoor') and one steam room. There are detailed explanations about how to cleanse yourself before entering the spa area, but I was trying to work out where the shower facility was!! You actually need to go through the changing room and enter the spa area - where you will find the sit-down showers!! Hope this helps!!