Iya Valley & Oboke Gorge
The Iya Valley is one of Japan's three great hidden valleys โ a dramatic V-shaped gorge carved by the Iya River into the heart of Shikoku. Steep forested walls plunge hundreds of metres to the turquoise water below, with Oboke and Koboke gorges offering some of the most spectacular riverside scenery in the country. The valley is best explored by car, with countless pull-offs for photography and traditional thatched-roof farmhouses visible on the hillsides.