Nagano Yamanouchi Town
An exceptional private spa where you can enjoy craft beer and natural hot springs in complete privacy
"Private SPA&SAUNA U" is a day-use hot spring facility in Yamanouchi, Nagano Prefecture, specializing in private rental baths. Every room is equipped with a natural hot spring open-air bath, and some rooms also feature saunas with self-löyly. Its biggest draw is the experience created with craft beer from the attached brewery, including aroma pairing in the sauna, a special beer cold plunge bath, and even beer showers. Guests can also enjoy dishes and sweets from the restaurant in their rooms after bathing, spending blissful time in a completely private space that delights all five senses.

A fully private natural hot spring open-air bath equipped in every room. While taking in the rich nature of Yudanaka, you can enjoy a private bath without anyone disturbing you. Depending on the plan, you can also enjoy it as a chocolate spa by adding chocolate aroma bath additives, creating a luxurious and extraordinary time to relax.

A private sauna space set within a rental guest room. Self-löyly is available, and depending on the plan, guests can enjoy a pairing experience with exclusive aroma oils and the fragrance of craft beer, as well as a unique chocolate pack experience surrounded by a sweet aroma. You can work up a sweat at your own pace without worrying about those around you, and enjoy a deep sense of relaxation.

A special beer cold plunge bath made with generous amounts of the company's own craft beer. It is characterized by the rich hop aroma that seems to stimulate the senses, and it refreshingly cools the body after sauna use. You can also enjoy the unique experience of pouring beer over yourself in a craft beer shower, delivering a burst of exhilaration that awakens all five senses at once.
Irregular Holidays
Yudanaka Shibu Onsen Area
Spectacular open-air baths overlooking the Shinshu mountain range and a highly heat-retentive natural hot spring
Yudanaka Shibu Onsen Area
A Yudanaka inn where you can enjoy natural hot spring water flowing directly from the source, managed by the yumo to, and sweeping views of Shinshu

Yudanaka Shibu Onsen Area
A sulfur-scented natural free-flowing hot spring with drifting yu-no-hana and a spacious, wood-warm sauna
JAPAN'S FINEST ONSEN & SAUNA
The Finest Onsen & Sauna in Japan
61 SELECTIONS
Most of what we surveyed never even made it onto this site. This book is a further cut from what did. Our editor bathed in every onsen and sauna in it, and wrote only what they confirmed on the ground.