Ruby Palace
ルビーパレス
Ruby Palace is a women-only, 24-hour sauna facility in Okubo, Shinjuku Ward, Tokyo. It offers a bakuhanseki (medical stone) sauna, a loyly sauna, a far-infrared sauna, a mugwort (yomogi) steam sauna, and a large communal bath. In the mugwort steam sauna, yomogi is introduced at the high-temperature steam outlet; the official site notes that in Korea yomogi has long been incorporated into baths and saunas. Bathing areas are shared, and a 4-hour admission is 2,200 yen (tax included).
| Address | 東京都新宿区大久保1-12-2 |
|---|---|
| Nearest station | 西武新宿線「西武新宿駅」北口 徒歩5分／都営大江戸線「東新宿駅」徒歩5分／JR山手線「新大久保駅」徒歩9分 |
| Private / shared | Shared |
| Gender | 女性 |
| Style | 薬草スチームサウナ（よもぎスチームサウナ／高温のスチーム口によもぎを取り入れる方式） |
| Hours | 24時間営業・年中無休 |
| Herbs used | よもぎ（ヨモギ）Japanese Mugwort |
| Price | 4時間入館 ¥2,200（税込）／10時間入館 ¥2,640（税込）／早朝入浴2時間 ¥1,320（税込・AM6:30〜AM10:00入館）／麦飯石サウナ ¥330（税込・別料金） |
| Information checked | 2026-08-23 |
Prices, hours and the herbs used are subject to change. Please confirm on the official site before visiting.
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