On the top floor of KAI Zao, a loop-style wellness area allows you to become one with the surrounding nature of Zao. Move freely between the sauna, cold plunge pool, and lounge to achieve your own personal state of mindful clarity.Ascending through the tower's spiral layout brings you to the rooftop garden, where an open-air whirlpool bath awaits. This journey to the upper floor washes away daily stress, quietly unwinding your mind and body.
We also offer a guide to the Detox Spiral, seamlessly leading you from the hot springs through the wellness area.
A process of deep restoration, unfolding with every step.

┃Sauna

┃ Cold Plunge Pool

┃ Indoor Relaxation Area

┃ Guided by Light

┃ Whirlpool Bath
| Reservation | Not Required |
|---|---|
| Prices | Free |
| Hours | 7F: Sauna, Cold Plunge Pool & Indoor Relaxation Area 5:00AM-10:00AM / 2:30PM-1:00AM Rooftop Garden: Whirlpool Bath 5:00AM-10:00AM / 2:30PM-1:00AM Rooftop Garden: Areas excluding Whirlpool Bath 5:00AM-1:00AM |
| Notes | * Available exclusively to overnight guests. * The sauna and cold plunge pool on the 7th floor, as well as the rooftop whirlpool bath, are designated swimwear-required areas. Guests wishing to use these facilities are kindly asked to bring their own swimwear in advance. If you do not plan to use the rooftop whirlpool bath, you may relax in the rooftop area wearing yukata, loungewear, or your preferred attire. * The sauna, cold plunge pool, and whirlpool bath are mixed-gender shared facilities. * To ensure a comfortable experience for all guests, photography and video recording are strictly prohibited in the sauna, cold plunge pool, and indoor relaxation area. * Facilities may be closed temporarily during severe weather conditions, such as severe thunder or lightning. |