Day-use Hot Spring Plan

Please be sure to read the important notes below before your visit.

You can enjoy Kawayu Onsen’s uniquely strong acidic hot spring, including an open-air bath with spectacular views of untouched nature, through our day-use bathing plan.

露天風呂からの景観

Day-use Hot Spring Bathing

Hours of Use:
1:00 PM – 9:00 PM
Last admission: 8:00 PM

Amenities Provided in the Public Bath Area:

• Shampoo

• Conditioner

• Body Soap

• Facial Lotion

• Hair Dryer

⚠️ Please Note:

Drinking water and other personal items are not provided.
Please bring anything else you may need with you.

Available for Purchase at the Front Desk:

• Towel Set: ¥200 (tax included)

• Mineral Water (500ml): ¥100 (tax included)

男湯

女湯露天風呂

Notice – Please Read Before Use

Bathing Guidelines and Important Notices

🛁 Before Entering the Bath

• Please rinse your body thoroughly and wash with soap before entering the bath.

• If you have open wounds, skin inflammation, or sensitive skin, please be aware that the hot spring water is highly acidic and may cause irritation.

• Pregnant women, elderly guests, and small children are advised to avoid bathing if they feel unwell.

🚫 Prohibited Behavior During Bathing

• Guests under the influence of alcohol are strictly prohibited from using the baths.
  Bathing while intoxicated poses serious health risks such as dizziness, fainting, and heart complications.

• Guests with tattoos (including irezumi) are not permitted to use the bath, as it may cause discomfort or concern for other guests.

• Do not bring towels into the bathtub.

• Use of mobile phones or cameras is strictly prohibited in the bathing and changing areas.

• The outdoor bath is adjacent to a government-protected forest. Please do not leave the bathing area or enter restricted zones beyond the fence.

🧴 Other Important Reminders

• Please remove any jewelry or metal items (rings, glasses, etc.) before bathing, as they may corrode or discolor due to the acidic water.

• To avoid overheating, please limit bathing to 10–15 minutes per session.

• After bathing, hot spring minerals may remain on the skin. You may rinse off with a shower if desired and are encouraged to apply moisturizer to prevent dryness.

• Please store valuables in the designated safety lockers.
  We are not responsible for any loss or theft of personal belongings.

• Floors may be slippery due to mineral deposits. For your safety, please walk carefully and use handrails when available.

• A bath tax of ¥90 is included in the room rate. This tax will not appear separately on your receipt.
  If you require a detailed receipt showing the tax breakdown, please ask at the front desk.

✨ We Appreciate Your Cooperation

To ensure a safe and pleasant experience for all guests, please follow the above guidelines.
If a guest does not comply with staff instructions, we may have to refuse further use of the facility.

About Kawayu Onsen’s Water Quality

Kawayu Onsen is known for its strongly acidic hot spring water, often said to be capable of dissolving an iron nail within a week.
This unique quality may cause visible corrosion to certain facilities within the bath area.
In addition, electronic appliances may have shorter lifespans (1–2 years), and some bath amenities may occasionally malfunction without warning.
We ask for your understanding regarding these natural effects of the water.

About Insects

Our signature open-air bath with a view of the national forest is located directly next to natural woodland.
As a result, insects may occasionally enter the bathing area, especially outdoors.
We provide a net for guests to remove insects from the bath if needed.

If you are particularly sensitive to insects, we kindly ask for your understanding that bathing may not be suitable during certain conditions.