The place is a little hard to find. You take a turn by a gaming house and through a little tunnel and then immediate left, up some steps and right by the police station.
Cost Yen 1,000 for entry and you receive a wrist band. The wrist band is so you dont have to carry any cash if you want to order the additional treatments, massages and food and drink on offer. You then pay on exit. You need a couple of Yen 100 pieces for the lockers, but this is refundable.
The Spa has about 5 or 6 floors with a female and male section. They give you some casual clothes to walk around in and a small loin cloth inside the Onsen. On the Onsen floor there were perhaps 6 or 7 different areas to go in (each named after Rome, Greece etc). Mostly hot tubs, wash areas, salt and herbal baths. There was an outside area with three small pools, one with a waterfall. Temperatures of the pools were around 36-40 degrees and the cold baths 19.
Perfect way to while away a few hours and get some good relaxation all for about US$10.
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