Kiyotsukyo Gorge, known as one of Japan's three great gorges along with Kurobe Gorge and Osugi Gorge, was designated as Joshinetsu Kogen National Park in September 1949, and is a treasure house of academic materials.

The gigantic rock walls cut across the river create a V-shaped grand canyon that is the pride of the nation, and is designated as a national natural monument of scenic beauty.

The combination of the majestic columnar-jointed rock surfaces and the clear rapids of the Kiyotsu River is dynamic and amazing, and leaves a deep impression on visitors.

The Kiyotsukyo Valley Tunnel was reopened as the artwork “Tunnel of Light” by the Chinese architectural unit “Ma Yansong / MAD Architects” at the 7th Echigo-Tsumari Art Triennale (2018).

As you proceed through the cave-inspired entrance, you will find many mechanisms to not only see nature, but also to see it from a different perspective, such as a passageway of light effects and a space lined with distorted mirrors.

The highlight is the panoramic station at the far end of the tunnel. The walls are made of stainless steel plates and the floor is covered with water, reflecting the grand canyon.

Photo by Photoby_NakamuraOsamu