The Iya River is a scenic river located in the Iya Valley of Japan's Shikoku island. Known for its stunning gorges and lush greenery, the river flows through a mountainous region, attracting nature lovers and adventure seekers. The area is famous for its unique vine bridges, which are traditional structures made from local materials. The river is also significant for its clear waters, which support various aquatic life. Visitors can enjoy activities such as kayaking and fishing, while the surrounding landscape offers opportunities for hiking and exploring the rich biodiversity of the region.