The Goshiki-numa ponds of Urabandai are a cluster of five volcanic lakes at the foot of Mt. Bandai. When Mt. Bandai erupted in 1888, Goshiki-numa - which translates as "Five-Colored Ponds - were formed. In actuality dozens of lakes were created due to the 1888 eruption, but the Goshiki-numa Ponds are the most famous. It was thanks to the eruption that the lakes each took on rich color; the various minerals found in each lake give them a unique color and create a mystical aura.
The colors of the Goshiki-numa Ponds also change throughout the year depending on weather and time of day, a truly mysterious phenomenon. The lakes have become a popular tourist destination. The five main lakes are Bishamon, Aka, Ao, Benten, and Midoro, and their colors range from a lime green to deep turquoise to a topaz blue. A scenic walking route guides visitors around the ponds. At 3.6 km in length, this walking route - which will take you past many of the ethereal colors - takes about 70 minutes to complete.
If you’d like a view of all five lakes at once, why not take the 4 km walking trail from Bishamon-numa (largest of the five lakes) up to nearby Lake Hibara. Alternatively, if hiking is not on your itinerary, enjoy a simple rowboat out on Bishamon-numa. It’s especially lovely in autumn as the color of the autumn leaves reflects on the deep green surface of the lake. In winter, there are even snowshoe trekking tours offered. The color of the lakes looks particularly vivid in winter, seeing as the minerals in some of the lakes stop them from freezing over, meaning you can see their colors contrasted with the white of the snow.
Be sure to stop by the Urabandai Visitor Center, which is a large and well-equipped facility. You can find great information here about tours as well as the various geography, wildlife, and even the history of the area. It’s a great chance to learn more about the ecosystem that makes up the Goshiki-numa Ponds.