Agatsuma Gorge — The "Yabakei of the Kanto Region"

Agatsuma Gorge is a beautiful gorge stretching approximately 3 kilometers, carved by the Agatsuma River through hard bedrock over long ages. Its rock formations, cliffs, and clear stream create scenery so varied that it has been likened to the famous Yabakei scenic gorge in Kyushu, earning the nickname "Yabakei of the Kanto Region." It is one of Gunma's representative natural attractions, drawing many visitors especially during the autumn foliage season.

Highlights

The gorge was formed as the Agatsuma River, flowing down from the Kusatsu and Manza areas upstream, eroded the hard bedrock on both banks over many years. Steeply cut cliffs and river-worn rock formations line the course, combining with the clear stream to create constantly changing scenery. At the narrowest point the banks close to just a few meters apart, an impressive sight that is one of the gorge's highlights. Near Shikatobi Bridge the river narrows dramatically, and local legend says a deer once leapt across here, giving the bridge its name. Hunting for the named rock formations, such as Byobu-iwa (Folding-Screen Rock), is part of the fun of walking the trail.

Enjoying the Seasons

Wrapped in lush greenery, the gorge changes its expression with every season: fresh green in spring, deep verdure in summer, brilliant foliage in autumn, and quiet stillness in winter. A promenade runs along the gorge, letting you enjoy the rock formations and cliffs up close while listening to the murmur of the stream. Autumn is the most popular season, with the foliage typically at its peak from late October to early November, when red and yellow leaves contrast beautifully with the clear water. The fresh green of spring and early summer is also refreshing and ideal for walking.

Access & Basic Information

• Location: Higashiagatsuma Town, Agatsuma District, Gunma Prefecture
• By train: The area around Kawarayu-Onsen Station on the JR Agatsuma Line serves as the base; the gorge entrance is within walking distance of the station
• By car: From the Shibukawa-Ikaho IC on the Kan-Etsu Expressway via national roads; parking is available near the gorge
• Nearby: Well positioned to combine with Yamba Dam, Kusatsu Onsen, and Shima Onsen
• Trail: The path has ups and downs, so allow extra time

Practical Travel Notes

The promenade includes unpaved sections and stairway-like stretches, so comfortable walking shoes such as sneakers are recommended. The gorge is heavily shaded, and cool air flows through even in summer. Restrooms and shops are limited, so bring drinks in advance. The nearby Yamba Dam has been developed, and more visitors now combine the gorge with views of the dam lake and the surrounding roadside stations. On autumn weekends the surrounding roads and parking areas grow crowded, so an early morning visit is recommended.

A Word of Advice

The appeal of Agatsuma Gorge is that you can casually enjoy genuine gorge scenery while still in the Kanto region. Start at the viewpoint overlooking the gorge on the Kawarayu-Onsen Station side to grasp the overall landscape, then descend to the promenade to better appreciate the scale of the ravine. Famous hot springs such as Kusatsu and Shima are close by, so the tabitabi JAPAN editorial team recommends combining a gorge walk with a round of hot-spring hopping.

📚 Sources

The content here is organized from official tourism information from local bodies such as Higashiagatsuma Town and Nakanojo Town, public information around Agatsuma Gorge and the Yamba Dam, and on-site guidance. The state of the paths, the operation of restrooms and shops, and crowding on nearby roads change by season. Because fees, hours, and access can change, please confirm with official sources before you set out.

Visitor Checklist

• Time needed: One to two hours for a stroll along the paths, or about a half day including a nearby roadside station and the Yamba Dam.
• What to bring: The paths have unpaved and step-like sections, so sneakers or other comfortable shoes are reassuring. Restrooms and shops are limited, so prepare drinks in advance.
• Suggested route: Walk the Agatsuma Gorge paths to enjoy the scenery, then also visit the nearby Yamba Dam and roadside stations.
• Seasonal note: The gorge is shady, with cool air flowing even in summer.
• Crowd note: On autumn-foliage weekends, nearby roads and parking get busy, so an early-morning visit is recommended.