St. RegisUltra-LuxuryCity
Osaka, Japan
160 rooms
Nikken Sekkei & GA Design / Modernist Skyscraper Grand Palace Architecture
Osaka, Japan
Spa & Wellness
The St. Regis Osaka Spa & Wellness
The Iridium Spa at The St. Regis Osaka is a Forbes Four-Star wellness sanctuary on the 14th floor. Facilities include private luxury treatment suites, hydrotherapy whirlpools, steam rooms, saunas, an outdoor 12th-floor Japanese Zen rock garden, and therapies utilizing Japanese green tea and bamboo botanicals.
6:00am – 10:00pm daily
Facilities
- 12th-floor outdoor Japanese Zen rock garden offering a tranquil sky sanctuary
- Forbes Four-Star Iridium Spa featuring private suites and Japanese thermal rituals
- Direct underground access to Honmachi subway station connecting Osaka lines
- 24-hour dedicated signature St. Regis Butler service for 100% of guest rooms and suites
Signature Treatment
Uji Green Tea and Mineral Salt Polish and Four Seasons Restorative Deep Tissue Massage.
The St. Regis Osaka spa FAQ
- What rating does the spa hold?
- The Iridium Spa at The St. Regis Osaka holds a prestigious Forbes Travel Guide Four-Star award.
- What products are used in spa treatments?
- The spa utilizes French luxury skincare by Sothys and organic Japanese botanicals.
- What signature treatment is featured?
- The signature ritual is the Uji Green Tea Polish and Four Seasons Restorative Deep Tissue Massage.
- What are the spa hours?
- The Iridium Spa and the 24-hour fitness center are open daily from 6:00am to 10:00pm.
Reviewed by Hotel Flock · Last updated September 2026