• Shinanoji Nature Trail is a hiking course about 10km in length, which is almost a descent from the peak teahouse. Walk about 7,5 km to the hot spots in Oze, which has many attractions. A downhill trek is relaxed while being healed by the colorful miscellaneous trees and larch forest. You can also see the two famous Karuizawa waterfalls (Shiraito Falls and Dragon Falls) along the way. This course is recommended for people who are not always confident in their physical fitness, and young and old alike, since the entire trip is almost a descent. From Oze Onsen, it is also possible to return to the peak chaya parking lot by bus or directly to Karuizawa Station.

At the waterfall that is the source of Yukawa, the clear stream falls like white thread over a height of 3 m and a width of 70 m, and it is surrounded by a refreshing sensation. The scenery that weaves with the surrounding nature, such as the time of fresh green and colored leaves, is also wonderful.