Koza River Nukumi

This dive site offers freshwater river diving in the clear Furuza River. You can observe the giant salamander, a special national natural monument. You can also dive downstream, but the giant salamander is often seen in the upstream area, about an hour upstream from Furuza town.

In addition to the giant salamander, you can also see stream fish such as amago, eels, ayu, catfish, and fish such as warts and mole, crustaceans such as mole crabs and shrimps, amphibians such as the red-bellied newt, and freshwater insects such as goatfish and kingfish.