A variety of baths – from large public to private reserved – can be enjoyed,
such as the “Chobo-no-yu Shiokaze” spa, which affords an exhilarating vista, or the “Isobe-no-yu Matsukaze” spa,
whose close proximity allows one to take in the comforting sounds of the sea.

Shirahama Onsen is considered one of “Japan’s three most ancient spas,” and has long attracted emperors away from the capital. The salinity of the hotel’s hot spring at its source is similar to seawater, so it affords a long-lasting post-bathing warmth and reputedly has a good moisturizing effect.


An open-air bath that is proud of its fabulous views of the beautiful Shirarahama beach and the sea melding with the sky. A nocturnal moonlit soak with the sound of the surf in the background is a truly extraordinary experience.
Hours:3:00 p.m.~1:00 a.m. / 5:00 a.m.~9:30 a.m. (Male and female bathing times alternate)


An outdoor bath lapped by the surf, and a partially open-air stone bath. A large communal bath with the mesmerizing lapping of waves and a gentle sea breeze.
Hours:3:00 p.m.~1:00 a.m. / 5:00 a.m.~9:30 a.m. (Male and female bathing times alternate)

Private Bath

The private bath is available by advance reservation.
45-minute sessions: ¥2,200 (including tax) / Available on the hour from: 4:00 p.m., 5:00 p.m., 6:00 p.m., 7:00 p.m., 8:00 p.m., 9:00 p.m., 10:00 p.m., 11:00 p.m., 7:30a.m., 8 :30a.m.
Private baths can be reserved using the inquiry form.

Basic Information

Spa Quality/Efficacy

Name of Hot Spring Source
Spring quality
This hot spring water contains carbon dioxide, sodium, strong chloride salts (hypertonic, neutral, hyperthermal spring)
■General benefits
May help with neuralgia, muscle pain, joint pain, stiff shoulders due to age, motor paralysis, joint stiffness, bruising, sprains, chronic digestive ailments, hemorrhoids, poor circulation, post-illness recuperation, recovery from fatigue, general health
■Benefits of this spa’s quality
May help with cuts and grazes, burns, chronic skin ailments, physically weak children, chronic gynecological ailments, high blood pressure, arterial sclerosis
Type of bath
Large baths (Matsukaze/Shiokaze), outdoor baths (Matsukaze/Shiokaze), private bath
■Men & Women:
Hair dryer, body soap, shampoo, conditioner, shaver, shower cap, comb
■Men only:
Shave cleansing, hair tonic, hair liquid, lotion, emulsion
■Women only:
Facial wash & make-up remover, lotion, emulsion
  • Lockable lockers are available in the changing room, but you are recommended to ask the front desk to safeguard any valuables.

Best bathing practice at Shirahama Spa

  • Resting for at least 30 minutes prior to taking a bath is recommended.
  • Start by pouring hot water over yourself, then slowly immerse in the hot bath until your shoulders are covered.
  • Move your arms, legs and hips slowly through the water once thoroughly warmed. (Do not over-exert yourself or remain too long in the bath if short of breath.)
  • Relax for at least 60 minutes after taking a bath.

After bathing, the residual constituent elements from the Shirahama spa water slowly infuse into the skin to exert their efficacy. We recommend that any post-bath showering be kept to a minimum to maximize the efficacy of the spa water.