This foot onsen is 105 meters of pure happiness. There are places to sit and just soak, but there are also reflexology bumps in the walking part of the onsen. You can massage your feet out of the water too. Your choice.
The Obama Onsen is a free foot bath snuggled into the Unzen area of the Nagasaki Prefecture. You can soak your feet while either gazing upon the ocean or the mountains.
It's free to soak your feet. They're open from 10:00 to 18:00 until April when they are open until 19:00.
The pet foot bath is at the end. On the other end is a place where you can steam your lunch.