Pension Alpine

I used the baths while camping at Kisokoma Reisui Park. The posted hours seem to be 9am to 9pm, though I wasn't sure if the changing rooms stay closed until 11pm. For 500 yen with PayPay, you can apparently use it around the clock. There are two big tubs and three washing spots, so timing matters. Maybe it comes down to luck, or maybe a shower is enough. The shampoo and treatments were "Ikue," recommended by President Iguchi, and apparently silica water too. Towels and other items were also on sale.

Bath entry is 500 yen, and it seems you can pay with most kinds of electronic money. Just keep in mind it's only open through September 30. It's quite a climb from Reisui Park, so I'd recommend driving over.

Anyone can use this bathhouse by the unmanned auto campsite, about a five-minute walk from the Kogara trailhead on Mt. Kiso-Komagatake. It's clean, though the sweat smell in the changing room bothered me a little. The posted closing time is 11:00 PM, and it costs 500 yen. It's free for anyone under 18. There are only three washing stations, but the water flow is strong. The tub is large, though its lid is shut, so you have to lift it yourself before getting in. Silica water is free, and a few goods are available to buy.

It was quite comfortable. The bath is big enough for about eight adults, and there are three washing areas and two hair dryers in the changing room. The water is made from melted snow silica. It's free for anyone under 18. Adults pay 500 yen for 24 hours and can use the bath as many times as they like during that period.