The Kuma River is a prominent river located in Kumamoto Prefecture, Japan. It flows for approximately 113 kilometers and is known for its clear waters and beautiful scenery. The river originates from the Aso Mountains and eventually empties into the Yatsushiro Sea. The Kuma River is famous for its white-water rafting and kayaking opportunities, attracting outdoor enthusiasts. It also plays a vital role in the local ecosystem and economy, providing water for agriculture and supporting various wildlife species along its banks.