Urabandai Goshikinuma — The Color-Changing Ponds of Fukushima

In the highlands north of Mt. Bandai in central Fukushima Prefecture, a remarkable landscape was created in an instant: the 1888 eruption of Mt. Bandai collapsed the mountain north face, releasing a debris avalanche that dammed multiple valleys and created hundreds of new ponds and lakes in a single catastrophic event. Today, this volcanic landscape, part of Bandai-Asahi National Park, contains some of Japan's most extraordinary water scenery. The Goshikinuma (Five-Colored Ponds) are the most celebrated: a cluster of more than thirty ponds, each displaying a distinctly different water color, set on a plateau roughly 800 meters above sea level.

Highlights

The colors of the ponds arise from differing concentrations of volcanic minerals, aquatic plants, and the angle of the light. Because of this, a single pond can shift in hue depending on the weather, season, and time of day, which is exactly what makes visiting so rewarding. The Goshikinuma Nature Trail (about 3.6 kilometers, roughly one hour one way) winds through forest past a succession of ponds: Bishamon-numa (the largest, glowing emerald green), Aka-numa (reddish-brown), Ruri-numa (clear blue), Ao-numa (deep blue), and Benten-numa, among others.

Bishamon-numa, at the trail entrance, offers rowboat rental so visitors can experience the color from the water, with Mt. Bandai rising behind it. The forest walk itself, cool and green, is part of the pleasure.

Season by Season

Spring (April to May) brings fresh green and the clearest water after snowmelt. Summer (June to August) offers cool highland air and vivid contrast between beech forest and colored water. Autumn (October to November) is the peak, when foliage and pond colors combine for the areas most dramatic scenery, and crowds are heaviest. Winter (December to March) turns the forest and ponds into a quiet snow landscape, though parts of the trail can become difficult after heavy snowfall.

Getting There

From Inawashiro Station on the JR Banetsu-sai Line, take a Bandai Toto bus to the Goshikinuma entrance (about 30 minutes). By car, exit at Inawashiro-Bandai-Kogen IC on the Banetsu Expressway (about 15 minutes). Parking is available at both the Bishamon-numa entrance and the Urabandai-Kogen end of the trail. Admission is free.

Practical Travel Notes

The colors show best on a clear morning, when you can position yourself to avoid backlight. Because the trail runs one way, it helps to park a car at each end or combine walking with the bus. Allow about one hour for the walk, and bring water and good footwear. A simple stroll takes one to two hours; add the Bishamon-numa rowboats and nearby sights and you can fill half a day. Larger lakes such as Hibara, Akimoto, and Onogawa lie nearby, and the whole area pairs well with Lake Inawashiro and Aizu-Wakamatsu for a one-night trip. With free admission, costs are mainly transport and meals.

One Piece of Advice

During the autumn foliage season the parking lots fill by late morning, so an early start is strongly recommended. Even in summer the highland mornings and evenings are cool, so bring a light layer. Give yourself unhurried time to watch the ponds shift color.

📚 Sources

Information on Urabandai Goshikinuma can be confirmed through public sources from Kitashiobara Village, the Urabandai tourism association, and Bandai-Asahi National Park, and guidance on the Goshikinuma nature trail and the boats at Bishamon-numa is also helpful. Bus schedules and the trail's winter conditions may change, so please confirm official information and on-site conditions before you set out.

Visitor Checklist

• Estimated time: One to two hours just for a stroll, or half a day if you add the boats at Bishamon-numa and nearby sightseeing.
• What to bring: Bring comfortable shoes and a drink for the trail. The highland is cool morning and evening even in summer, so a layer adds comfort. Small change is handy for the boats.
• Suggested route: Walk the Goshikinuma nature trail (about 3.6 km, roughly an hour one way) and enjoy a boat on the largest pond, Bishamon-numa. Touring over two days with Lakes Hibara, Akimoto, and Onogawa, the Mt. Bandai trailhead, Lake Inawashiro, and Aizu-Wakamatsu is also recommended.