Onioshidashi Park

This bare expanse of rock testifies to the power of Mt. Asama’s great eruption in 1783.

It is counted as one of the Three Strange Sights of the World, and is the most famous sight on the Asama Highland.

The landscape of volcanic rocks have unique and rugged appearance, which reminds you of grandeur of nature.

You can enjoy the incredible landscape in a quiet atmosphere.


  • 50 minutes by car from the Hotel West
  • Infrequent bus service between Karuizawa station, Naka-karuizawa station and Onioshidashi Park is available. (Seibu Kogen Bus)

Opening Hours: 8:00 A.M. – 5:00 P.M.

*Opening hours may be changed depending on the season or weather condition. Please confirm the information in advance when you visit.

For further information: