Nishina San-ko (Nishina Three Lakes).

Nishina San-ko refers to the collective name for three lakes located in the Suwa region of Nagano Prefecture. They are individually known as Nakano-ko, Nishi-no-ko, and Minami-no-ko. These lakes are characterized by their beautiful natural scenery and clear waters, and are beloved by both local residents and tourists. In particular, the autumn foliage around the lakes is stunning, attracting many visitors. There are also walking trails and observation decks around the Nishina San-ko area, allowing visitors to fully enjoy the richness of nature.