Onioshidashi Volcanic Park

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Onioshidashi Volcanic Park
Photo: Σ64 / CC BY 3.0

Located on the Gunma-Nagano border, Mount Asama is one of Japan's most active volcanoes. The wide variety of alpine wildlife against the volcanic landscape creates some truly spectacular sights. Black rocks, created by hardened lava, punctuate the landscape. There are even rare types of plants that flourish year-round; goblin gold moss is one such species, in spring and autumn. Goblin gold is especially unique for its endangered status and the park is one of the few places in the world where it grows.



1053 Kanbara, Tsumagoi, Agatsuma District, Gunma 377-1593 (Map) (Directions)


8:00 - 17:00 Open Now

Opening Hours

Monday 8:00 - 17:00
Tuesday 8:00 - 17:00
Wednesday 8:00 - 17:00
Thursday 8:00 - 17:00
Friday 8:00 - 17:00
Saturday 8:00 - 17:00
Sunday 8:00 - 17:00
Holidays 8:00 - 17:00

Phone Number




General Amenities

  • Free parking


A 35-minute bus ride from Karuizawa Station to Onioshidashi Park.

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