1. How to use ticketing machine at the Hyokkori Onsen Shima-no-Yu
The ticketing machine at the onsen works similarly to other ticket machines in Japan. If you look in the top corner, you can change the language to English. From there you should buy the basic ticket to enter the onsen. If you need a towel or any other rentals, make sure to add them to your ticket. The desk is right behind you, so if you need help, ask.
Here is the direction map to go to Hyokkori Onsen Shima-no-Yu.