"Aso Hotel Nibankan Nagasakiya" is a hot spring hotel in Uchinomaki Onsen in Aso City, Kumamoto Prefecture. It enjoys an excellent location overlooking Aso’s majestic scenery, and guests can casually enjoy 100% natural spring water straight from the source, drawn fresh without any added water, heating, or circulation. On the first floor, the hotel features a spacious public bath and an open-air bath with views of the garden, and another major highlight is that drinking the hot spring water is allowed, something rare even in Uchinomaki Onsen. While Ichibankan has a ryokan-style focus on meals, Nibankan is a hotel type that values the atmosphere of a therapeutic hot spring stay, allowing guests to fully savor the hot spring itself. As a base for sightseeing in Aso, it offers a soothing stay where you can surrender yourself to fresh, renowned waters.