Ryokan with warmth and relaxation, Koshijiso
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Hot Springs

Genuine sauce syrup, Echigo Muikamachi Onsen

Muikamachi Onsen is a weak alkaline friendly hot spring of spring that springs out during exploration of natural gas.
It boasts the highest amount of hot water in Niigata Prefecture, and realizes a genuine source overflowing hot spring.
It is popular because it has high fatigue recovery and warming effect and it warms very well.
The outdoor bath which is soaked while looking at various views every season of the Uonuma Basin surrounded by mountains is healed.

Overnight Stay·One-day hot springs·Stop by hot spring

Koshijiso hot springs accommodation, of course, also be entitled to use in the hot spring stop of the day spa plan and bathing only.

A day-trip hot spring plan is a plan that comes with meals and bathing.(Reservation required)

Although you do not need a reservation for drop-off hot springs, business days will be irregular so please visit us after confirming by telephone.(Toll)
※When the "rising" of the day-trip hot spring is out, it is in operation.
  • Echigo, Muikamachi Onsen

    Muikamachi Onsen is a Muikamachi Onsen in Showa 32.
    It is a relatively new hot spring that gushed out during the exploration of natural gas.

    It boasts the highest amount of hot water in Niigata Prefecture, making it possible to sink from the source.
    About 60 years have passed since the open-water service, and we are enjoying it to many customers inside and outside the prefecture.

    Fountain quality is a sodium chloride fountain It is a natural hot spring with outstanding heat retention power of soft touch to your skin.

    Koshijiso is in front of the source, and without warming by drawing hot water directly
    You can enjoy the source as it is.

    Also, in front of the hotel, you can use free of charge as well as source of foot bath.

    Muikamachi Onsen, Yuan, Koshijiso, Free flowing Hot Springs directly from the source

    Hot spring bath hours
    11:00 to 19:30, 20: 00-24: 00
    Hot spring bathing category
    Menyu: Ansa-no-yu, Female hot water: Anesa-no-yu (Goodwill: Gender exchange)
    Hot spring qualities
    sodium·Chloride fountain(Hypotonic Weak Alkaline High Spring)
    Characteristics
    It is a weak alkaline, gentle to your skin, and it is a hot spring that warms up to the core of your body.
    You can refresh and refresh by draining waste products with sweat.
    I draw hot water with luxurious source drainage method.

    The source temperature is 52.9 degrees, and the temperature of the hot spring is adjusted by adjusting the amount of hot water.
    Efficacy
    General indication

    Neuralgia·muscle pain·Arthralgia·Frozen·Motor paralysis·A bunch·Awkward·Joint stiffness
    Chronic gastrointestinal disease·Coldness·Recovery period after illness·Recovery from fatigue·Health Promotion
    Cautions
    Because it is a real source sinking method, I change hot water and clean it everyday.(From 0:00 to 5:00)
    Therefore, it is not open 24 hours.Please acknowledge it beforehand.

    Usage fee
    Drop in stops, 1,000 yen for adults, 500 yen for children (Please bring them with no towels etc)
  • Outdoor bath

    There are two large and small prospected outdoor baths.

    Mt Sakado and Uonuma Hills will jump into the eyes when going to the outdoor bath through the inner bath.
    The wind and the scenery of each season brings a healing effect.

    In the big hot outdoor bath, sleeping hot water is also installed.
  • Stop by hot spring

    Koshijiso we accept your Koshijiso in the hot spring bathing only.

    ※Since business days will be irregular, please visit us in advance after confirming.
     (Group reservation may be closed on Sunday / Sunday day trip party / closed day etc.)

    Opening Hours, 11:00, ~, 19: 30

    Bathing fee, Adult 1,000 yen, Children, 500 yen

    Face towel, Sale, @ 150 yen
    Bath towel rental, @ 400 yen

    ※You are welcome to bring towels.
    (Please use the items of shampoo and body shampoo provided)

Hotspring Information

Hot Springs

Muikamachi Onsen(Natural hot spring 100%) Hot Spring Baskdown ※It does not include artificial hot springs

Open Air Bath

Yes (There are also men and women (including time change) · Charges are not allowed)

Number of baths

"Outdoor bath] Man: 1 Female: 1 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)

Bath Terms of Use

Gender change by time
No late night bathing(For safety)
Having bathing time limit

Onsen tax

Hotspring tax adult 120 yen (child free) separately.