A Finnish-style self-löyly sauna with a spectacular view floating on the sea. The men's sauna is called "Umi no Sauna" and the women's sauna is "Sora no Sauna," offering a unique location with an endless ocean and sky view. Sit on the two-tiered bench made entirely of hinoki and achieve a state of totonou while gazing at the grand panorama of the Ariake Sea through the large window protruding into the sea. When Shimabara spring water is poured over the sauna stones heated by the latest model ZIEL (electric heater) from METOS, it sizzles and crackles, enveloping the body in an intense heat wave. With no TV or noise, only the pleasant sound of löyly can be heard.

The only total hinoki sauna with a sea view on the Shimabara Peninsula, made from Kumamoto-grown cypress. It evolved to be even more powerful with the renewal in February 2023, introducing the METOS löyly dedicated sauna stove "iki." Auto-löyly operates every hour on the hour and half-hour, filling the room with pleasant aromatic steam. Additionally, a jet fan installed on the ceiling automatically activates every 30 minutes, delivering an intense heat wave.

A private sauna for adult meditation and totonou. A cozy-sized sauna entirely lined with hinoki. Enjoy a quiet time to reflect on yourself, a special moment with close friends, or in any style you prefer in this private space. The latest model ZIEL (electric heater) from METOS, located at the back of the bench, transforms self-löyly into the ultimate experience.

The only steam sauna with a sea view in Shimabara. It creates a high-humidity space that is gentle on the skin, throat, and hair. With a lower temperature setting (around 40°C) compared to high-temperature dry saunas, it is less stimulating and burdensome on the body, allowing even those who are not fond of hot saunas to sweat comfortably and slowly.

An infinity "standing water" bath floating on the sea. A new sensation cold plunge bath where you can stand and soak in a breathtaking location closest to the sea. With a water depth of about 130cm, you can immerse yourself up to your shoulders, enjoying the depth with six steps. It abundantly uses Shimabara natural spring water, selected as one of the top 100 famous waters in Japan, with a smooth water quality rich in calcium gushing from the foot of Mount Unzen.

Private cold plunge baths for one person. Situated in a scenic spot overlooking the sea, each bath offers different temperature settings adjusted by cooling chillers. Experience the "cold-cold alternating bath" that cannot be found elsewhere, and find your preferred cool down by laddering through the different temperatures.

A spring water bath using 100% natural water from the top 100 famous waters in Japan, flowing directly from the source. A new sensation cold plunge bath with eight nozzles gently enveloping the entire body. After the sauna, enjoy a refreshing cool down with a cold water head shower, making it easy for those who are not fond of cold plunge baths to enjoy. The mildness and refreshing sensation unique to Shimabara spring water pleasantly cools the heated body.