Onioshidashi Volcanic Park

4.52 Reviews
Onioshidashi Volcanic Park (Photo: Mt Asama – Σ64 / CC BY 3.0)

Mount Asama, on the border between Gunma and Nagano, is one of the most active volcanoes in Japan. Onioshidashi Volcano Park is characterized by volcanic sediments that were deposited here during the great eruption of the mountain in 1783. The great diversity of alpine wildlife in front of the volcanic landscape offers some truly spectacular sights, black rocks formed by hardened lava criss-crossing the landscape.

Overview

Address

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

Hours

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

0279-86-4141

General Amenities

  • Free parking
  • Combini

Accessibility

  • Multi-purpose toilet

Access

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

Related Articles

3 articles
Oni-oshi-dashi Park

Oni-oshi-dashi Park

Livvy Boote

Near Karuizawa resort on the border of Japan's Gunma and Nagano prefectures, Onioshidashi park offers the best view of Mount Asama and its beautifully rocky, rugged environment.

Gunma 16.9k 5
Oni-oshi-dashi, Nagano/Gunma

Oni-oshi-dashi, Nagano/Gunma

Peter Sidell

Near the resort of Karuizawa in Japan's Nagano prefecture, Onioshidashi is a fascinatingly strange, rugged landscape, formed by volcanic lava which solidified into an endless variety of shapes.

Gunma 10.3k 1

Onioshidashi Volcanic Park

4.5

2 Reviews
  • 5 star 1
  • 4 star 1
  • 3 star 0
  • 2 star 0
  • 1 star 0

Reviews

Near Onioshidashi Volcanic Park

Hotel Green Plaza Karuizawa

Hotel Green Plaza Karuizawa

Aline Laborde

Hotel Green Plaza Karuizawa, wrapped neatly in crisp fresh mountainside air and landscaped splendor is a family friendly hotel offering the many joys of Japan. In every season there is something for everyone. In Fall you can enjoy the vibrant autumn foliage, in Spring you can take delight in the cherry blossoms, in Winter you can play in the fresh woolen snow and in Summer relax by the bright beaming flowers.

Gunma 8.9k 1
Karuizawa Kingdom of Toys

Karuizawa Kingdom of Toys

Aline Laborde

Has your child ever wondered what it’d be like if they gathered all the toys they ever wanted into the same room? Then Kingdom of Toys, a theme park located near Hotel Green Plaza Karuizawa, will satisfy this fantasy with many indoor playrooms chockfull of Barbie, trains, Lego, race car toys, and crafty activities such as making your own iron-on print and iron-on beads. Only a short stroll away from Hotel Green Plaza Karuizawa, Kingdom of Toys also makes a good day time activity if you decide to stay at the hotel.

Gunma 9.2k 2
Asama Kogen Rhododendron Festival 2025

Asama Kogen Rhododendron Festival 2025

Kim Bergström

The Asama Kogen Rhododendron Festival includes an incredible 150,000 rhododendrons covering an area the size of 10 Tokyo Domes. Along with the bounty of blooms to enjoy, the festival will also include free guided garden walks and plant sales from local growers.

Gunma 2.6k
Shiraito-no-Taki Waterfall

Shiraito-no-Taki Waterfall

Livvy Boote

Near Karuizawa resort in Japan's Nagano prefecture, Shiraito-no-Taki Waterfall is a great example of beautiful landscape and nature.

Nagano 11.6k 2
Explore Gunma