Kurokawa Onsen Trail, in Kumamoto-prefecture
The most popular hot spring resort in Aso region, located on the northern side of Mount Aso.
Widely known for its open-air baths, it is one of the best places to enjoy the atmosphere
of old town in Japan, where more than 20 Inns (Ryokan)and gift shops standing in a row
along the Tanoharu River, a headstream of the Chikugo River.