Hakone-Yumoto Onsen 箱根湯本温泉
It is the oldest of Hakone's 17 hot springs, discovered, according to tradition, in 738.
It grew up along the Haya River at the foot of Mount Yusaka (whose name means ‘steep slope where hot water gushes out’), and today it is the busiest hot spring resort in Hakone.
Kanagawa
Hakone-Yumoto