Nagano Saku City
A skin-beautifying private spring with a 300-year history and highland open-air bathing in the fresh air at the foot of the Tateshina Mountains
"Kasuga Onsen Kasuga no Mori" is a hot spring inn in Saku City, Nagano Prefecture, with a history of more than 300 years since its opening. Its private spring, embraced by the rich nature at the foot of the Tateshina Mountains, is abundant in metasilicic acid, a beauty ingredient, and is well regarded as a beautifying bath that leaves the skin soft and moisturized. Both the large bath and the medium bath feature garden-style open-air baths surrounded by greenery, ultrasonic bubble baths, and authentic dry sauna facilities. Bathed in the clear highland air at an elevation of 900m, you can enjoy a truly exceptional relaxation experience.
A garden-style open-air rock bath extending outside the large bath and medium bath, surrounded by lush greenery. This bath is filled with luxurious free-flowing water direct from the source. You can enjoy an exceptional skin-beautifying bath while soaking in the beautiful highland scenery, from fresh green leaves to autumn colors and clear snowy landscapes. Alternates daily between men and women.
A private bath installed inside the guest room. At Kasuga no Mori, every guest room bath is supplied with hot spring water from Kasuga Onsen, so you can enjoy a luxurious hot spring bath anytime you like, right in your room, without having to go to the large bath.
A small but well-used and clean dry sauna. The temperature is set so it heats you thoroughly, and the quiet room encourages comfortable sweating. You can work up a good sweat in the stillness surrounded by nature.
[Day-use bathing] 11:00-16:00 (last admission, hours may vary during busy periods, etc.)
Nagano
A celebrated spot with drinkable North Alps groundwater and the nation’s top electric baths
Nagano
A premium Karuizawa resort where you can totonou in a natural hot spring with water flowing directly from the source and the forest’s spring water
Nagano
A highland hot spring resort standing by Lake Shirakaba
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.
