Annaka City, Gunma Pref.
Isobe Onsen is a quiet onsen town set on the Usui River.
Isobe Onsen has long been a popular retreat for writers and artists. It is believed to be the first onsen in the country to use the now-ubiquitous onsen map symbol, first occurring on a sign in the 1600s.
- About 30 min. by bus from Annakaharuna Sta. on JR Hokuriku Shinkansen to Isobe Sta. on JR Shin-Etsu Line
-> About 5 min. on foot
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