Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Nagaoka, on the Shinano River plain of central Niigata Prefecture, is a major industrial and cultural city celebrated as the birthplace of Yamamoto Isoroku — the Japanese naval admiral who planned the attack on Pearl Harbor — and renowned for the Nagaoka Fireworks Festival, one of Japan's three great fireworks displays, whose enormous three-dimensional star burst shells and phoenix shells represent the pinnacle of Japanese pyrotechnic artistry. Tochio Onsen Niigata draws on sodium and bicarbonate thermal waters from the geothermal resources of the Nagaoka basin, offering restorative baths in the greater Nagaoka metropolitan area where the city's petroleum refining heritage, the largest oil field in mainland Japan, and the exceptional Niigata rice and sake culture create a surprisingly multifaceted destination. The Nagaoka Fireworks Festival's spectacular August displays, the Yamamoto Isoroku Memorial Museum, and the extraordinary Koshi no Kanchiku sake brewed from Niigata's exceptional snowmelt water and Koshihikari rice create an appealing blend of industrial, military, and culinary heritage for thermal spa visitors in central Niigata Prefecture.