Automatically generates a large amount of steam every hour at 00 and 30 minutes, with a domed ceiling circulating the steam. The relative humidity is set at around 55%, providing gentle heat that raises core body temperature without drying out. Equipped with a METOS heater, it ensures thorough sweating in a short time.

The barrel-shaped structure excels in heat convection, allowing löyly steam to circulate evenly throughout the room. Made entirely of Hitachi cypress, it envelops you in a rich hinoki aroma. You can adjust the humidity and heat intensity to your liking by pouring an appropriate amount of water with a ladle.

Partitions separate each individual's space, allowing for focused 'silent bathing'. The side reflective heat and löyly effect from the ceiling warm the entire body. It offers an introspective steaming experience in a quiet environment for 8 to 10 people.

A strong cold setup with single-digit water temperatures. It quickly lowers the body temperature raised in the sauna, creating a sharp 'cold'. It is recommended for short use for those unaccustomed, allowing you to create your own hot and cold alternating bath routine.

Jet streams strip away the 'temperature veil', lowering the perceived temperature even at the same water temperature for a sharp cool-down. It provides a thorough cool-down even with a short stay, enhancing the 'calmness' during the next outdoor air bath.

Perfectly located next to the outdoor barrel sauna. You can cool down slowly while lying on your back and gazing at the sky.