Professor Onsen’s Top Hot Springs

(Photograph courtesy of the Noboribetsu Tourist Association.)

(Photograph courtesy of Kuroyu Onsen.)

(Photograph courtesy of the Takayu Onsen Tourist Association.)

(Photograph courtesy of Kusatsu Onsen.)

(Photograph courtesy of Shimofujiya.)

(Photograph courtesy of Ryokan Sakaya.)

(Photograph courtesy of Yarimikan.)

(Photograph courtesy of the Tawarayama Onsen Partnership.)

(Photograph courtesy of the Beppu Tourism Division.)

(Photograph courtesy of Maruchō Ryokan.)

(Photograph courtesy of Yamamizuki.)