The three-tier tower sauna was renovated in July 2023. In the high-temperature room, it draws out sweat thoroughly, and the automatic löyly creates waves of heat and steam. The unique ventilation system called 'Ibuki Oroshi' features a forced air intake above the sauna stove, optimizing heat convection and fresh air circulation. The spacious area allows up to 25 people to sweat comfortably. The automatic löyly conducted every hour on the hour significantly enhances the quality of heat, providing a profound sweating experience.

The far-infrared sauna warms the body from the core. The heat is gentle and penetrates gradually, allowing for a long stay without strain. Unlike the high-temperature sauna, the texture of the heat slowly eases fatigue. In a quiet space, you can reflect on yourself and sweat while relaxing. It can accommodate about 10 people, making it ideal for those who want to enjoy thermal activities at a leisurely pace.

An indoor cold plunge bath to tighten the body after the sauna. It uses groundwater, characterized by its smooth texture. With a moderate coldness, it gently envelops the heated body. It can accommodate about two people, allowing for a thorough cool-down. The softness unique to groundwater is comfortable, and by repeating the sauna and cold plunge bath, a deep sense of relaxation can be achieved.

A barrel-shaped cold plunge bath installed in the open-air area. It uses groundwater, characterized by its smooth and gentle coldness. In the open air, it crisply cools the heated body. The depth and shape unique to the barrel evenly cool the entire body, enhancing the refreshing sensation. After the cold plunge bath, the flow to the nearby Adirondack chairs for an outdoor air bath is ideal.