Hoshino Onsen Tombo-no-yu
Tombo no Yu
A natural hot spring retreat in Karuizawa featuring open-air baths with flowing spring water.
Tombo-no-yu is a natural hot spring facility located in the scenic Hoshino area of Karuizawa, Nagano Prefecture.
What makes it special
About Hoshino Onsen Tombo-no-yu
- Seasonal Open-Air Baths: Enjoy the luxury of free-flowing hot spring water while gazing at the changing colors of the forest through every season.
- Sauna & Cold Bath: Experience the perfect wellness cycle with our specialized sauna and a refreshing cold bath made from fresh forest spring water.
- Seasonal Themed Baths: Immerse yourself in unique experiences like the 'Apple Bath' in autumn or the 'Yuzu Bath' during the winter solstice.
- Total Immersion in Nature: The large windows and open architecture allow you to feel as if you are bathing directly in the heart of the forest.
Weather forecast
Thu
9/17
19°/14°
100%
Fri
9/18
17°/13°
39%
Sat
9/19
18°/16°
43%
Sun
9/20
22°/17°
55%
Mon
9/21
19°/18°
53%
Tue
9/22
22°/14°
33%
Wed
9/23
18°/14°
24%
Tips
Payment
Please check the official website for detailed payment methods.
English Support
Please check the official website for information regarding English signage or support.
Reservation
No advanced reservation required (walk-ins welcome).
Electronics
Use of smartphones and electronic devices is strictly prohibited in the changing rooms and bathing areas.
Photography
Photography is strictly prohibited inside the bathing area.
Accessibility
Baby baths are available on-site.
Tattoos
Tattoos are allowed only if covered by a designated waterproof sticker (min. 10x8cm), available for purchase at reception.
Hair Care
The use of hair dye or colorants is strictly prohibited in all areas (changing rooms, baths, and restrooms).
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