Ueda Onsen Nagano
- Location
- Ueda, Nagano, Japan
- Water type
- sodium chloride
- Temperature
- 41 °C
- pH
- 7.3
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Ueda, in the center of Nagano Prefecture on the Chikuma River, is celebrated as the domain of Sanada Masayuki whose small but brilliantly defended Ueda Castle withstood two sieges by the massive Tokugawa armies — a remarkable military achievement that made the Sanada clan one of the most celebrated strategic families in Japanese history and the subject of the popular Sengoku-period NHK drama Sanada Maru. Ueda Onsen Nagano draws on chloride-rich thermal waters from the geological resources of the Ueda basin, offering restorative baths in a historically significant city whose Sanada heritage, traditional Ueda tsumugi silk weaving craft, and position at the gateway to the Bessho and Utsukushigahara highland hot spring resorts create an exceptionally rich cultural and thermal destination in central Nagano. The Ueda Castle ruins and Sanada Shrine within the castle grounds, the Bessho Onsen highland spa village accessible by the charming Ueda Electric Railway, and the Ueda City Museum of Art housing an impressive collection make Ueda one of the most culturally rewarding thermal gateway cities in the Japanese Alps.