< Feature 1>Semi-outdoor hot spring bath with a superb view of the sky, sea and city.

“Myojo no Yu” is situated 170m above sea level and in the best location that allows you to even see the Sagami bay on a fine day, a modern design that truly gives you a feel of floating on the water.

< Feature 2>An indoor bath crafted from the warm, aromatic wood of the Japanese cypress

Our indoor baths feature tubs made from Hiba wood, allowing you to feel the warmth and natural texture of the wood against your skin. The water is rich in chlorides, known for its ability to retain heat and keep you warm long after you’ve left the bath. This gentle mineral composition is perfect for children as well, making it an ideal choice for a relaxing and soothing soak for the whole family.

< Feature 3> Origin of Myojo no Yu.

In 1914, Kasuke Hoshino opened Hoshino Hot Spring Hotel at Karuizawa. It was named as “Myojo-Kan”and was loved by many, and that is where the name “Myojo no Yu” was inherited from. Even the name “Myojo no Yu” was used in Tekkan’s poem. The only hot spring left that still inherits the name is right here in the public bath of Hoshino Resorts RISONARE Atami.


Citrus and Marine themed menu is available. Pregnant women can also enjoy the menu.

Opening period

All year round (except when hotel is closed)


3:00PM-1:00AM next day; 4:30AM-11:00AM (for hotel guests only)


Hotel guests can use it for free (non-hotel guests are not allowed).

Upon usage

We do not admit guests with any kinds of tattoo to use the baths.

Hot spring type

Calcium and sodium chloride sulfate spring (low osmotic pressure / neutral / extra hot spring)


Chronic pain or stiffening of muscles or joints (chronic stages of rheumatoid arthritis, osteoarthrosis, lower back pain, neuralgia, frozen shoulders, bruises, sprain, etc), stiffening of muscles due to motor paralysis, gastrointestinal malfunction (indigestion, intestinal gas, etc), mild high blood pressure, diabetes, mild high blood cholesterol, mild asthma or pulmonary emphysema, hemorrhoid pain, autonomic imbalance, various symptoms due to stress (sleep disorders, depression, etc), recovery from illnesses or fatigue, enhance health, cut wound, peripheral neuropathy, poor circulation, depression, dry skin

Contraindications for hot spring

Apparent physical weakening such as active stage of illnesses (especially with fever), active tuberculosis, spread malignant tumor, or severe anemia, etc; severe heart or lung diseases that even minimal movements can cause shortness of breath; severe kidney diseases with swelling; gastrointestinal bleeding, visible hemorrhage, during acute advanced stage of chronic diseases