Experience thermal wellness in Atami
The Moon and Sun is attractive for your destination because you can enjoy both Atami's natural hot springs and authentic Finnish saunas. You can reset your daily stress and fatigue by alternating between the sauna and cold water bathing followed by warming your body in the hot spring,
Perfect for family groups, couples, or friends, you can enjoy these facilities without worrying about other guests.
Authentic Private Finnish Saunas

All Moon and Sun saunas are equipped with Finnish-style sauna stoves, allowing you to enjoy hot steam through pour water into the stove (löyly).
Enjoy the luxury of deep relaxation in your private sauna space where you can warm up at your own pace.
No bathing and sauna items needed. Comprehensive Amenities

Sauna hats and bathrobes are provided in your room. There's no need to carry your own sauna items. Our bathrobes are also perfect for cooling down on the terrace, even on cold winter days.
If you bring a swimsuit, you can easily enjoy the outdoor cooling area and Jacuzzi as well.
Fragrant Sauna Scents Available
All villas offer original sauna scents created in collaboration with Artemis Herbal Shop, which provides natural sauna herb scents. Experience ultimate relaxation with these aromatic sauna scents.
Sauna Facilities
The Moon and Sun BASE ATAMI
A luxurious space featuring two sauna rooms, two hot spring baths, a cold water bath, a terrace for cooling down, and an outdoor pool. Even with a large group, there's plenty of room to enjoy the sauna experience.
One of the sauna rooms has a small window, making it ideal for whisking and other sauna rituals. After sweat, cool down in the cold water bath or pool. Various options guide you to your perfect relaxation.
The Moon and Sun EN ATAMI
Newly introduced as the Moon and Sun's fourth villa, EN ATAMI features two Finnish saunas, one with a small window for fresh air intake, making it ideal for whisking and authentic sauna rituals. The indoor area has both a hot spring bath and a cold water bath, and the terrace features an outdoor bath (hot spring) in a Japanese-modern space where you can thoroughly enjoy the sauna experience. After a good sweat, enjoy cooling down on the spacious terrace.
The Moon and Sun HANABI
Featuring one Finnish sauna, and a Jacuzzi on the terrace that can be filled with water to use as a cold plunge, allowing you to enjoy the view and open-air feeling simultaneously.
This luxurious villa is perfect for those who want to enjoy sauna sessions throughout the night while taking in Atami's night views. It promises a special, memorable stay.
The Moon and Sun DREAM VILLA
This villa features one sauna, a Jacuzzi on the terrace, and a cooling area at the top of the stairs where you can enjoy a nice view. After enjoying the sauna with friends or family.