Over time, the rapid stream of the Agatsuma River eroded the mountain surface on either side of it to make Agatsuma Valley look the way it does today. The valley is designated as a national sight of scenic beauty. It is believed that millions of years ago, a volcano erupted, and the lava was eroded by the river. A 3.5km-long valley displays many rocks of all shapes and sizes as well as waterfalls on both sides. There is also a 1.8km nature trail where you can enjoy about a 40-minute walk. Agatsuma Valley showcases different beautiful scenes in each of the four seasons. In the spring, you can appreciate the beauty of purple azaleas. The end of October to early November is the best season to view autumn leaves. The colored leaves contrast with the pale green of the river surface. In 2012, an 86-meter-high bridge was constructed, and from the top you can experience a bird’s eye view of the area, including the Fudo-no-taki Waterfall, after which the bridge was named.
Tourist Attractions in the area
Kawarayu Onsen Will Disappear Underwater
Yamba Dam resumed its construction recently after years of opposition against its construction. Once the dam is complete, the Kawarayu Onsen (Hot Springs) will disappear underwater. Please visit it before then and remember the way it is now, while it still remains as an old onsen town.
Address: Ooaza Kawarayu, Naganohara-machi, Agatsuma-gun, Gunma MAP
Iwabitsu Fureai-no Sato
This is a multi-purpose facility to welcome guests with a Health Center, Welfare Center, and Onsen Center. The place offers a large onsen bath, a sauna bath, and other different types of baths. The open-air bath surrounded by nature is very popular.
1046 Ooaza Haramachi, Higashi-Agatsuma-machi, Agatsuma-gun, Gunma MAP
Asama Shuzou Sightseeing Center
Asama Shuzou is a sake brewery. This is their shopping mall-like facility where guests can enjoy everything from fast food to dining in a restaurant with a view. Eating soba noodles and mushroom dishes while enjoying the great mountain view in the distance is a memorable experience. There are gift shops where you can buy collector item sake bottles.
1392-10 Mukaibara, Naganohara-machi, Agatsuma-gun, Gunma MAP
At 2,568 meters above sea level, Mt. Asama is an active volcano which lies on the borders of Gunma and Nagano prefectures. When Mt. Asama erupted in 1783, the lava flowed from the volcano and spread throughout the northern and eastern sides and down to the base of the mountain, turning into rocks of all shapes and sizes after cooling down. This vast area is now called Onioshidashien/Asamaen and is part of the Joshinetsu Highland National Park, a place where you can see these rocks up close.
1053 Kanbara, Tsumagoi-mura, Agatsuma-gun, Gunma MAP
Scenic Spots to view autumn leaves in Gunma PDF
Industrial Section, Higashi-Agatsuma-machi: 0279-68-2111
Kawarayu Onsen Tourism Association: 0279-83-2592