Nagano prefecture Nagano prefecture Places to visit in Nagano Around Suwa Lake Suwako Suwa Lakeside Park. Takashima Castle Reconstructed castle with garden. Suwa Taisha One of the oldest shrine complexes in Japan. Stone Buddha Manji Stone Buddha statue near Harumiya shrine. In Kiso Valley Natural sites in Kiso Valley Ono-no-taki, Nezame-no-toko, Kiso-no-kakehashi Kiso-Fukushima One of the old post towns of Nakasendo. From Kiso Valley to Shirahone Onsen Drive through the mountain with a few stops. Other sites Matsumoto One of the most beautiful castles in Japan. Yatsugatake Mountain range on the border of Yamanashi and Nagano. Places to stay in Nagano Aburaya Ryokan on the shores of Lake Suwako.