Kanto
13 onsen areas
Tochigi
5 →
Kawaji Onsen
Quiet gorge onsen at the confluence of the Kinu and Kawaji rivers in Tochigi, just upstream of bustling Kinugawa. The local saying "Kawaji for cuts, Kinugawa for ailments" nods to its gentle alkaline waters and traditional yutoji feel.
Oku-Nikko Yumoto Onsen
Mountain onsen at the headwaters of Lake Yunoko inside Nikko National Park, 1500 m above the temples of Nikko. Cloudy sulfur springs in a primeval beech forest.
Kinugawa Onsen
Tochigi resort town in the Kinugawa River gorge — gateway to Nikko and a long-time family destination, with cliff-top rotenburo overlooking the canyon.
Shiobara Onsen-kyo
Eleven onsen districts strung along a 9-km gorge of the Hoki River in Tochigi. Wide range of spring chemistries within a tight valley.
Nasu Onsen-kyo
Onsen group along the foothills of Mount Chausu, with Nasu-Yumoto's milky sulfur waters at its heart.
Gunma
5 →
Manza Onsen
Japan's highest onsenchi, at 1,800 m on the slopes of Mt. Shirane in Gunma. Strongly acidic milky-white sulfur waters (pH 2.5) from one of the country's most active geothermal fields, with rotenburo open to alpine views year-round.
Shima Onsen
Quiet Gunma valley onsen designated 国民保養温泉地 #1 in 1954. The 'forty-thousand cures' name nods to its medicinal reputation.
Ikaho Onsen
Gunma hillside onsen built around a 365-step stone staircase. Famous 'gold' (iron-bearing) and 'white' (sulfate) waters.
Minakami Onsen-kyo
Group of 18 onsen along the upper Tone River in northern Gunma, surrounded by Tanigawa-dake. Big snow country with skiing, rafting, and rotenburo.
Kusatsu Onsen
One of the three great onsen of Japan (Sanmeisen). Famously hot, acidic waters; the wooden yubatake in the town center funnels source water into cooling channels.
Chiba
1 →
Kanagawa
2 →
Yugawara Onsen
Quiet Kanagawa onsen in the foothills of the Hakone outer rim, on the Manyoshu-era list of historic baths. Plum blossoms in February.
Hakone Onsen
Mountain resort town in Fuji-Hakone-Izu National Park, with Hakone-Yumoto, Miyanoshita, Gora, Sengokuhara and a dozen more sub-areas spread across the caldera.