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Onsen introduction

In 1954 (1656), Teikoku Oil Co.,Ltd, Teikoku Oil Co.,Ltd collected high-quality Onsen springs from wells mined in this area for oil and natural gas extraction.
Therefore, on July 5, 1958, 1958 opened a public bathhouse with a resting place.
Fountain quality is sodium chloride spring (weakly alkaline hypertonic low Onsen) and contains salt similar to sea water ingredients, it is salty, colorless and transparent hot water.
By bathing, salt is attached to the skin and it prevents evaporation of sweat, so it has a good moisturizing effect and it is hard to melt, so it is said to be "hot water".
We use the Onsen Unohama Onsen of No. 6 well of Unohama Onsen as hot water.
  • Open Air Bath Included, Large Communal Bath

    "Hoshi-no-yu (Men's Bath) / Tsuki-no-yu (Women's Bath)" with a public bath with outdoor bath

    · You can take a bath in the bath for 24 hours.
    · We use a Onsen Unohama Onsen of No. 5 well of Unohama Onsen as hot water.
    There are effects on various symptoms such as those with atopic constitution, low back pain, stiff shoulders and so on.
    Please refer to "Analysis table of Unohama Onsen" about the efficacy of Onsen.
  • Garden outdoor bath, Sodium-chloride fountain(Weak alkaline hypertonic low Onsen)

    Please enjoy the scent of hinoki and Japanese garden.
    Each room has been used by reservation system, the charge is 45 minutes 1,100 yen.
    When you arrive at the hotel, please reserve the hotel as soon as possible.
    ※1 wash place, No Toilet
    ※Reservation required
  • Sake Barrel Bath with a view of the Sea of Japan Limited hours During winter, you cannot take a bath during bad weather.

    You can relax in the hot water while watching the sunset over the Sea of Japan from the rooftop sake barrel bath with a view of the Sea of Japan.
    The barrel bath is available on a reservation basis for each room.
    The fee is 1,100 yen for 25 minutes.
    When you arrive at the hotel, please reserve the hotel as soon as possible.
    ※1 shower room, No Toilet
    ※Reservation required 

    Please do not sit in Onsen.

    Hot spring bath hours
    From 15:00 to 20:00
    Hot spring bathing category
    Reserved mixed bath
    Usage fee
    25 minutes 1100 yen

Hot Springs

Unohama Onsen

Open Air Bath

Yes (There are also men and women (including change of time) · Available for private use)

Private Bath


Number of baths

"Outdoor bath] Man: 2 Female: 2 Mixed Bath: 0
[Inner bath] Man: 1 Female: 1 Mixed Bath: 0
[sauna] Man: 0 Female: 0 Mixed Bath: 0

Other bath facilities

Observation bath(Conditioned) / Jacuzzi(Conditioned)

Bath Terms of Use

Private outdoor bath is two places 1. 1. Sea of ​​Japan Sea view Jacuzzi · garden outdoor bath, use time 15 o'clock to 23 o'clock, once 45 mins 1050 yen.Available for reservation from 7 o'clock to 10 o'clock, 24 hrs large public bath

Onsen tax

Hotspring tax 100 yen for adults, 50 yen for children (7 to 12 years old) will be charged separately.