Achi is a village located in the Shimoina District, Nagano (near Iida city). It is famous for the amazing starry sky, which has attracted many tourists from all over the world. The good news is that there is even a hot spring called "Hirugami Onsen," which will pleasantly complete your trip. If you are an art lover, try the Kumagai Motoichi Shashin Dōgakan for his photos and illustration.