Last updated: December 21, 2020
Feel the seasons with outdoor onsen bathing
Manza Onsen is a popular getaway in all seasons with a beloved ski area in winter. It is one of the highest-altitude hot spring resorts in Japan, located on the slopes of Mt. Kusatsu-Shirane, an active volcano.
Many of the onsen hotels have open-air baths with sweeping views. In winter, you can soak in a hot bath surrounded by snow. The natural onsen here are milky white with a strong sulfurous odor.
From Manza Onsen, you can see Manza Karabuki, an area where plumes of steam and volcanic gas billow nearly constantly from an ancient volcano crater.
Hoshimata, Tsumagoi, Agatsuma District (Map)
About 1 hour 45 minutes by bus from Manza-Kazawaguchi Station
About 1 hour 20 minutes by car from Usui-Karuizawa IC of Joshin-Etsu Expressway
About 1 hour 50 minutes by car from Shibukawa-Ikaho IC of Kan-Etsu Expressway
0279-97-2152 (Manza Onsen Tourism Association)
Road closures from Okumanza bus stop to the intersection with National Route 292 and from the Nagano border to the Manza Residents Center from mid-November to late April.
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