TenkunoAjitoMarushinSpa

Soak in the iki stove and groundwater cold plunge bath at a hideout floating in the skies above Sasazuka

Tokyo Shibuya City

"Tenku no Ajito Marushin Spa" is a men-only sauna facility open 24 hours a day, located on the 10th floor of a building in Sasazuka, Shibuya City, Tokyo. The sauna room is home to a large iki stove, where you can fully enjoy the powerful heat and steam created by self-löyly. Its biggest feature is the cold plunge bath filled with amber-colored groundwater drawn from beneath the building and luxuriously run continuously. It is also impressively deep, and its mellow feel on the skin gently envelops your overheated body. The view of Tokyo from the windows and the outdoor bathing space, where a pleasant breeze flows through, truly deserve to be called the city’s "hideout."

Sauna

Finnish-style sauna

100°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity12people

Men's

An authentic Finnish-style sauna centered around a Metos iki sauna stove. Self-löyly is available, and the steam from the aroma water quickly intensifies the heat in the room. Every Wednesday, a 110°C "strong setting" is also offered, earning overwhelming support from seasoned sauna enthusiasts.

Cold Bath

Cold Bath

20°C

Water QualityNatural Water (Groundwater, Spring, etc.)

Capacity4people

Flow-through
Men's

A cold plunge bath filled with amber-colored groundwater drawn from beneath the building and run continuously in luxury. With its moderate temperature setting and a tub more than 1 m deep, you can cool down your entire body gently yet thoroughly. The mellow feel of the groundwater against your skin is the kind of comfort that becomes addictive after just one visit.

Business Hours

Monday
10:00〜08:00
Tuesday
10:00〜08:00
Wednesday
10:00〜08:00
Thursday
10:00〜08:00
Friday
10:00〜08:00
Saturday
10:00〜08:00
Sunday
10:00〜08:00
Holiday
10:00〜08:00

Closed Days: None

Address

10F, Marushin Building, 1-58-6 Sasazuka, Shibuya City, Tokyo 151-0073

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

Gender Access

Male Only

ℹ️
Tattoos in the Communal Bath
No Tattoos

The above applies to the communal (shared) baths. At facilities with private baths or private saunas, guests with tattoos may still be able to bathe. Please check with the facility for details.

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