The whole bath area is gorgeous, and the outdoor setting is so relaxing I didn't want to leave! It's run by Hoshino Resorts, so the service quality is top-notch as always.
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Hoshino Onsen Tombo-no-Yu
Experience the famed “beauty hot spring” while taking in the natural beauty of Karuizawa through all four seasons.
3.95
1
Located about a five-minute walk from Harunire Terrace, the lifestyle complex operated by Hoshino Resorts, Hoshino Onsen Tombo-no-Yu is a renowned day-use hot spring cherished as one of Karuizawa’s classic retreats since its founding in 1915.
The facility features two types of baths: an indoor cypress bath filled with a soothing aroma and an outdoor granite bath surrounded by nature. Guests can enjoy the beauty of every season-cherry blossoms in spring, lush greenery in early summer, vivid autumn foliage, and snowy landscapes in winter-while relaxing in the hot spring. All baths are 100% natural hot spring water, flowing directly from the source with no recycling or added water, and the water is completely replaced daily. The mildly alkaline spring is known for its skin-smoothing properties, earning it the name “Beauty Bath.” The fact that it is safe for drinking further attests to its freshness. The facility also includes a sauna and cold bath for complete relaxation.
After your soak, unwind next door at Café Hungry Spot, where you can enjoy Karuizawa craft beer, soft-serve ice cream, and other treats perfect for post-bath refreshment.
Highlights
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A day-use hot spring operated by Hoshino Resorts.
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Enjoy high-quality hot spring waters while taking in the beauty of the seasons, such as autumn foliage.
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After bathing, unwind at the adjoining café with craft beer or soft-serve ice cream.
Photos
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The indoor bath offers a picturesque view of the open-air bath, resembling a painting.
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Located about a 5-minute walk from Harunire Terrace, the facility blends beautifully with its natural surroundings.
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Autumn foliage viewed from the indoor bath - one of the charms of soaking here is being able to feel the changing seasons.
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In winter, guests can enjoy a relaxing open-air bath while admiring the falling snow.
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At night, the surrounding trees are illuminated, creating a magical, dreamlike atmosphere.
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Even from the sauna room, guests can enjoy tranquil views of the outdoors.
Official FAQs
Frequently Asked Questions have been vetted and answered directly by each listing.
Q
Do you have signs or pamphlets in foreign languages? (If you do, which languages are available?)
A
Brochures and signs are only available in English.
Q
Is free Wi-Fi available inside the facility?
A
No, free Wi-Fi is not available, as the use of mobile phones is prohibited within the bathing area. However, Wi-Fi is available at Café Hungry Spot, located nearby within the same area.
Q
Are towels available for rent or purchase?
A
Yes, a towel set (bath towel and face towel) is available for rent for ¥350.
Q
Can I re-enter after leaving?
A
Re-entry is permitted within 4 hours of your initial entry. Please bring your receipt to the front desk, as the time printed on it will be checked.
Q
Are there any entry restrictions?
A
Admission is not allowed for guests who are intoxicated or may disturb others. Guests with tattoos are generally not permitted, but entry is allowed if all tattoos can be fully covered using 8 designated cover seals (each measuring 10 cm × 8 cm).
Q
Can infants or small children bathe?
A
Yes, they can. However, the indoor bath has a relatively high temperature (around 41°C) and a deep tub (about 90 cm), so the open-air bath is recommended for families with small children. A baby bath is also available. Please take extra care to prevent slipping or accidents.
Reviews
1
Partially translated by AI.
Details
- Name in Japanese
- 星野温泉 トンボの湯
- Postal Code
- 389-0111
- Address
- Hoshino, Karuizawamachi, Nagano
- Telephone
- 0267-44-3580
- Closed
- 11/26
- Business Hours
- 10:00am - 10:00pm（Admission allowed until 9:15pm）
- Admission
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April to November, New Year's holiday (4/11 to 12/29):
Adult 1,550yen
Children（3 years old to Elementary school children） 1,050yen
December to March:
Adult 1,350yen
Children（3 years old to Elementary school children）800yen - Access
- About 1 minute walk from " Tombo no yu" bus stop
- Credit Cards
- Accepted
- Official Website
- Official Website (English)