The Niyodo River in Kochi is famous for its stunning azure-blue green waters, often referred to as "Niyodo Blue." Visitors can explore the Nakatsu and Yasui Gorges to witness the natural beauty of the river, including the Uryu waterfalls and vibrant autumn foliage. For a mystical experience, head to Nikobuchi, where the deep blue waters create a mesmerizing sight. Adventurous types can also enjoy canoeing and standup paddle-boarding on the river. Just remember to respect the local rules and etiquettes to preserve this pristine natural wonder!