Nagano Saku City
A heartwarming chloride hot spring that springs up in peaceful satoyama
"Fuse Onsen" is a day-use hot spring facility located in the peaceful countryside of Saku City, Nagano Prefecture. It features open-air baths with views of serene satoyama scenery right in front of you, as well as a spacious indoor bath, and has long been loved by locals. The water is colorless and clear, and is known as a sodium chloride hot spring that warms you thoroughly from the core and keeps you from cooling off easily. The sauna features a rotation system every week, with two types available: a blazing authentic dry sauna and a fragrant mist sauna that gently moisturizes the skin. It also pairs exceptionally well with the deep, mildly cool cold plunge bath and outdoor bathing while soaking up the satoyama breeze all over your body.
This natural sodium chloride hot spring is highly praised for warming the body thoroughly, keeping you warm long after bathing, and making it hard to cool off afterward. Its mild weakly alkaline spring water is gentle on the skin, and in the open-air bath you can relax lavishly in a famous hot spring while enjoying the refreshing satoyama scenery that changes with the seasons.
A proper dry sauna with a comfortable old-fashioned atmosphere that makes the most of the warmth of wood. The temperature is kept high, and the strong, pleasant dry heat filling the room quickly warms you from the core and encourages refreshing sweating. The bathing areas for men and women switch every week.
A gentle, easy-to-enter mist sauna where abundant warm steam spreads leisurely throughout the room. The high humidity makes it easy to breathe, and it softly moisturizes your skin, hair, and throat while warming you calmly and comfortably without putting strain on your body.
A cold plunge bath installed right near the sauna room, featuring a distinctive deep design with no steps. The water temperature is set to be gentle on the body and not too cold, so even those who do not like the sudden shock of cold water can sink in comfortably and refresh their whole body pleasantly.
Open Year-Round
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
64 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.
