The Nachi River is located in the Wakayama Prefecture of Japan. It flows through the scenic Nachi-Katsuura area and is known for its clear waters and beautiful surroundings. The river is an important part of the local ecosystem and supports various wildlife. The Nachi River is also significant for its cultural heritage, as it runs near the famous Nachi Falls and the Nachi Taisha Shrine. These sites attract many visitors and pilgrims, making the river a vital part of the region's tourism and spiritual landscape.