Once a year, on June 26th, you can bathe in the public outdoor hot spring bath at any of the 25 ryokan belonging to the Kurokawaonsen Ryokan Association for free!
Schedule is as follows:
Date: June 26th(Monday)
Time: 10:00 am ~ 3:00 pm
Don’t forget to pop into the reception of the ryokan first before heading off to use the baths!