37BASE

Nanto’s sauna base equipped with state-of-the-art IKI sauna

Toyama Nanto City

"37BASE" is a bathing facility in Nanto City, Toyama Prefecture, that opened in December 2023. The former Horinji Onsen site was completely renovated and transformed into a modern relaxation spot with sauna at its core. On the men’s side, there is a sauna equipped with a massive iki stove and auto-löyly, while the women’s side features a bouna sauna known for its pleasantly soothing steam. In addition, the cold plunge bath with free-flowing natural water pumped up from underground leads sauna-goers to a supreme state of totonou.

Sauna

Finnish-style sauna

90°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity10people

Men'sWomen's

An authentic sauna featuring a massive Finnish-made iki stove. Auto-löyly is installed, and the powerful steam that rises at regular intervals quickly and pleasantly fills the room with heat. In this stylish space, you can enjoy a high-quality sweating experience.

Cold Bath

Cold Bath

15°C

Water QualityNatural Water (Groundwater, Spring, etc.)

Capacity2people

Flow-through
Men'sWomen's

Luxuriously uses natural water pumped up from underground in a free-flowing system. It features a stable cool temperature of around 15°C year-round and the smooth, gentle feel unique to natural water. It instantly tightens the body after sauna use and delivers an exceptional cooling-down experience.

Business Hours

Monday
09:00〜23:00
Tuesday
09:00〜23:00
Wednesday
09:00〜23:00
Thursday
09:00〜23:00
Friday
09:00〜23:00
Saturday
09:00〜23:00
Sunday
09:00〜23:00
Holiday
09:00〜23:00

Closed Days: None

Address

〒932-0203 Iwaya 16-1, Nanto City, Toyama Prefecture

Onsen & Spa Facilities (Super Sento, Sauna, Spa)

Gender Access

Gender Separated

Tattoo Policy
Unknown (Please Check)
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