Mt. Asama is the active volcano. You will able to see smoke on the top of the mountain from Onioshidashi Garden. There are many evacuation area when the mountain erupts.

The name "Onioshidashi" literary means "Ogre push off rocks." When Mt. Asama erupted, people believed that Ogre push off lava and rocks.

Because the altitude of Onioshidashi Garden is 1350m, the autumn leaves starts early. It is very beautiful colors with black of Lava, green of pine trees, and red of autumn leaves. In any season except winter, you can enjoy many kinds of Japanese flowers especially mountain flowers.