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Photo: 663highland, CC BY 2.5 via Wikimedia Commons
Shirane mountain is an active volcano and the crater lake is famous as a tour site. color of the water of crater lake is emerald green.
Mount Kusatsu-Shirane is a 2,165 m (7,103 ft) active stratovolcano in Kusatsu, Gunma, Japan. It is called Kusatsu Shirane to differentiate it from the Mount Nikkō-Shirane on the other side of Gunma Prefecture. The summit of Kusatsu-Shirane volcano, located immediately north of Asama volcano, consists of a series of overlapping pyroclastic cones and three crater lakes. The largest of these is Yu-gama, an acidic emerald green lake with rafts of yellow sulfur sometimes seen floating on its surface.
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草津国際スキー場, kusatsu kokusai sukījō
In the winter time, Kusatsu is famous for its skiing area and this place is good to visit. It also is a nice hiking area in the warmer months.
西の河原露天風呂 (Sainokawara Rotenburo)
This is the biggest outdoor bath in Kusatsu located within Sainokawara Park.
草津温泉館
This hall is one of the facilities in Kusatsu Highland Hotel (草津ハイランドホテル).
西の河原公園 (Sainokawara Kōen)
A small valley with a river fed by the natural hot springs surrounded by forest. An open air onsen is present within the park for a fee. There is also the Kusatsu visitor centre in the park detailing the flora and fauna of the region (descriptions are all in Japanese).
草津ビッグバス
Onsen facilities that are part of Now Resort hotel.
片岡鶴太郎美術館
An art museum of Japanese actor and artist Tsurutarō Kataoka. The concept is to be a place which people can stop by with yukata (浴衣) that is Japanese traditional clothes. There is a shop for souvenir.