Marushin Spa (マルシンスパ)
마루신스파 (マルシンスパ)
Men only. Rooftop sauna on the 10th floor. A hideaway in the sky.
About this place
NotesOfficially nicknamed Sky Hideaway. 90 seconds from Sasazuka Station, on the 10th floor — men only. Main sauna at 106°C with auto-löyly. Japan's first private sauna room with an Estonian stove and self-directed löyly. Daily aufguss sessions at 11am, 4pm, 7pm, 9pm. Wednesdays hit 110°C. The rooftop outdoor air bath looks out over the Tokyo skyline. From ¥1,800 for 2 hours.
Practical notes
Officially nicknamed Sky Hideaway. 90 seconds from Sasazuka Station, on the 10th floor — men only. Main sauna at 106°C with auto-löyly. Japan's first private sauna room with an Estonian stove and self-directed löyly. Daily aufguss sessions at 11am, 4pm, 7pm, 9pm. Wednesdays hit 110°C. The rooftop outdoor air bath looks out over the Tokyo skyline. From ¥1,800 for 2 hours.
Compiled from publicly available information and visitor reports. The rating shown is an editorial summary of the same, and does not mean we have visited every place in person. Prices and hours may change — please confirm with the venue before visiting.
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Info updated: 2026-08
Details may differ from actual conditions.
What stands out
- +Rooftop Tokyo view
- +Japan's first private sauna room
- +4 daily aufguss sessions
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