Day Use
Yes毎月第2 / 第4木曜日定休 / 1月1日 / 臨時休業あり
Adults ¥700 (weekday and weekend); children (ages 3–elementary) ¥400; ganbanyoku +¥500
Bathing & Water
Open-air outdoor bath
Enclosed indoor bathing area
Dry heat sauna room
Cold water plunge bath, typically used after sauna
Uses natural hot spring water
Capabilities
Private bath available for day-use visitors or hotel guests to reserve
Shared bathing area for all genders
Policies & Services
Allows entry with visible tattoos
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Towels available to rent or borrow
Relaxation space for after bathing
On-site or nearby parking available
Highlights
GanbanyokuAbout
37BASE opened in late 2023 in Nanto, Toyama, built around sauna as its main event. Each side has two saunas (a standard indoor room and a container sauna), two cold plunge baths, and an outdoor lounging area for cooling down in the open air. The baths use onsen water from Shogawa Clear Stream Hot Spring (庄川清流温泉, Shogawa Seiryuu Onsen), a lightly iron-tinged spring that also supplies a carbonated bath. Ganbanyoku (岩盤浴, heated stone bed) is available for a small extra charge. A restaurant, rest area, and ample parking round out the facility. Tattoos are welcome.
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