Niyodo River (Niyodogawa Town, Kochi Prefecture)
Overview (History, Features, and Attractions) The Niyodo River is a representative clear stream of Kochi Prefecture, known nationwide for its crystal clear blue water, known as "Niyodo Blue." Niyodogawa Town is located in the middle to upper reaches of the river, and is home to the pristine Tosa landscape, including abundant nature, beautiful valleys, and submerged bridges (low-water bridges).