Keigetsu is a traditional ryokan in Hirugami Onsen, Achi-mura, about 3 hours from Tokyo or 1.5 from Nagoya. It’s known for its high-alkaline “beautifying” hot springs, private hinoki baths, and peaceful mountain setting. Rooms range from classic tatami layouts to those with semi-open-air baths. The ryokan serves seasonal kaiseki meals and is one of the few places offering rare Murasawa beef. Guests can enjoy stargazing, the area is famous for having Japan’s clearest night skies. It’s a quiet, comfortable base for exploring the region or just slowing down in nature.