MOMIJI HOT-SPRING (Karuizawa Prince Hotel West)

Open-air Bath and Hot Spring with Views of Nature

Relax in our spacious indoor bath with large glass windows that let you enjoy the changing seasons, or in the open-air bath overlooking Momiji-yama , which is especially beautiful in autumn.

• Hot spring source name: Karuizawa Momiji-yama Onsen
• Discharge amount: 26.0 liters/minute
• Spring quality: Simple hot spring (hypotonic, mildly alkaline, low-temperature spring)
• Benefits: Relief for chronic pain or stiffness in muscles or joints (rheumatoid arthritis, osteoarthritis, lower back pain, neuralgia, frozen shoulder, contusions, sprains, etc.)
• Opening hours: 6:00A.M. – 11:00P.M. (Last entry 10:30P.M.)
• Fee: Free (Bathing tax ¥150 required)
• Notes: Facility is for staying guests only. Entire facility is non-smoking.

※ “MOMIJI HOT-SPRING” and the Fitness Room in Prince Hotel West are available exclusively for guests staying at The Prince Karuizawa, The Prince Villa Karuizawa, and Prince Hotel West (main building).
※ Guests of Prince Hotel West Cottages may use the facility between 6:00A.M.–7:00P.M. (last entry), ¥2,000/adult, ¥1,850/child (3–12 years).
※ Not available before check-in. After check-out, available until 3:00P.M. same day at ¥2,000 per person.

Usage Rules & Notices

• Towels are available for rental at reception.
• Boys aged 7 or older must use the men’s bath; girls aged 7 or older must use the women’s bath.
• Please wash your body before entering the bath.
• Wipe yourself dry before leaving the bath area.
• Do not place towels, shampoo, or other items in the bathwater.
• No food, drinks, or magazines in the bathing area.
• Be careful of slippery floors.
• Lost locker keys will incur a ¥3,000 replacement fee.
• Beware of temperature differences when using the open-air bath.
• The hotel is not responsible for accidents or injuries due to customer negligence.
• Guests wearing diapers cannot use the facility.
• Bathing suits and clothing are not allowed in the bath.
• Guests with bathing contraindications may not use the hot spring.
• Swimming, diving, submerging, or using floats/balls are strictly prohibited.
• Cameras and electronic devices with cameras (smartphones, mobile phones, etc.) are prohibited.
• Members of criminal organizations, or those with tattoos, are not permitted. If found, you will be asked to leave immediately.
• Violent behavior, immoral acts, or actions causing discomfort to other guests will result in immediate eviction.